## Library of Congress

The Library of Congress > Cataloging, Acquisitions > PCC > CONSER > Publication Patterns Initiative > Instructions for Enumeration and Chronology Data (Examples)
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## 6.2.3. Subfields \$a-h Enumeration data

For Vol. 1, no. 1, fasc. 1

891 20 \$9 853 \$8 1 \$a v. \$b no. [pattern] \$c fasc. [pattern]
891 41 \$9 863 \$8 1.1 \$a 1 \$b 1 \$c 1

In the following examples, the pattern which would normally given for subfields \$b and following is omitted from mention, though understood:

For 1:1 or 1-1 (where the numbers represent a more inclusive division followed by a subdivision, e.g. year:month): Ignore the dividing punctuation; input the numbers in consecutive subfields. Note: the relationship of the numbers must first be determined. When in doubt, input combinations in a single subfield, retaining the punctuation.

891 20 \$9 853 \$8 1 \$a (*) \$b (*)
891 41 \$9 863 \$1.1 \$a 1 \$b 1

For 1-1 (where the numbers are simply consecutive, e.g. 1-1 through 1-1000 )

891 20 \$9 853 \$8 1 \$a (*)
891 41 \$9 863 \$8 1.1 \$a 1.1-1.1000

If the piece in hand is not, or not with certainty, the first piece to be published with that caption and pattern, use angle brackets around the enumeration and chronology. Separate sets of angle brackets are used around the content of each individual subfield or portion of subfield indicating uncertain data.

For 3rd ed.

891 20 \$9 853 \$8 1 \$a +ed.
891 41 \$9 863 \$8 1.1 \$a 3

For Dec. '99

891 20 \$9 853 \$8 1 \$a (year) \$b (month)
891 41 \$9 853 \$8 1.1 \$a 1999 \$b 12

### Example of brackets: for Band 5, Heft 1, Abteilung 1

891 20 \$9 853 \$8 1 \$a Bd. \$b Heft \$c Abt .
891 41 \$9 863 \$8 1.1 \$a <5> \$b <1> \$c <1>

### Example of alternative enumeration: for Vol. 1, no. 1 (spring 1999) = no. 45

891 20 \$9 853 \$8 1 \$a v. \$b no \$g no. \$i (year) \$j (season)
891 41 \$9 863 \$8 1.1 \$a 1 \$b 1 \$g 45 \$i 1999 \$j 21

## 6.2.4. Subfields \$i-n Chronology data.

Examples:

for Tome 1, no 3 (nos 1 and 2 not in hand), dated Sept. 1997

891 20 \$9 853 \$8 1 \$a t. \$b no \$i (year) \$j (month)
891 41 \$9 863 \$8 1 .1 \$a <1> \$b <3> \$i <1997> \$j <09>

For Vol. 5A, no. 1, dated spring 1998, changing to semiannual with 6A Jan./June 1999:

891 20 \$9 853 \$8 1 \$a v. \$b no. [pattern for quarterly, cal. chg. 21] \$i (year) \$j (season) \$z ccan
891 41 \$9 863 \$8 1.1 \$a 5A \$b 1 \$i 1998 \$j 21
891 20 \$9 853 \$8 2 \$a v. \$b no. [pattern for semiannual, cal.chg. 01] \$i (year) \$j (month) \$z ccan
891 41 \$9 863 \$8 2.1 \$a 6A \$b 1 \$i 1999 \$j 01/06

for Vol. 25, no. 753, published May 8, 1999

891 20 \$9 853 \$8 1 \$a v. \$b no. \$i (year) \$j (month) \$k (day)
891 41 \$9 863 \$8 1.1 \$a 25 \$b 753 \$i 1999 \$j 05 \$k 08

### Examples:

891 20 \$9 853 \$8 1 \$a (year) \$w a
891 40 \$9 863 \$8 1.1 \$a 1990-2001

Compressed holding--all volumes were complete as published; lower levels of captions are dropped
362 reads: v. 1, no. 1 (Oct. 1975)-v. 25, no. 4 (July 2000)

891 20 \$9 853 \$8 1 \$a v. \$b no. \$u 4 \$v r \$i (year) \$j (month) \$w q \$x 10
891 40 \$9 863 \$8 1.1 \$a 1-25 \$i 1975-2000

Uncompressed holding--only one volume, partial; do not repeat volume number in \$a
362 reads: v. 1, no. 1 (Jan. 1994)-v. 1, no. 7 (July 1994)

891 20 \$9 853 \$8 1 \$a v. \$b no. \$u 12 \$v r \$i (year) \$j (month) \$w m \$x 01
891 40 \$9 863 \$8 1.1 \$a 1 \$b 1-7 \$i 1994 \$j 01-07

Uncompressed holding--first and/or last volume partial, so data for all levels given:
362 reads: v. 1, no. 1 (Jan. 1994)-v. 5, no. 2 (Feb. 1998)

891 20 \$9 853 \$8 1 \$a v. \$b no. \$u 12 \$v r \$i (year) \$j (month) \$w m \$x 01

891 40 \$9 863 \$8 1.1 \$a 1-5 \$b 1-2 \$i 1994-1998 \$j 01-02

Uncompressed holding--partial with last issue uncertain

891 20 \$9 853 \$8 1 \$a v. \$b no. \$u 12 \$v r \$i (year) \$j (month) \$w m \$x 01
891 40 \$9 863 \$8 1.1 \$a 1-<5> \$b 1-<2> \$i 1994-<1998> \$j 01-<02>

## 6.3. Inputting enumeration and chronology data for supplements and indexes (Optional)

### Examples:

For Supplement 1999

891 20 \$9 854 \$8 1 \$a (year) \$o cumulation
891 41 \$9 864 \$8 1.1 \$a 1999 \$o Year-end data

For index v. 1-25, 1976-2000

891 ## \$9 855 \$8 1 \$a index to v. \$i (year)
891 41 \$9 865 \$8 1.1 \$a 1/25 \$i 1976/2000

rev. dih 8/28/01

Correction history:
6/12/01, changed "Dec." to "12" in example "For Dec. '99"
8/22/01, merged examples for 6.2.3.2 and 6.2.4. (section 6.2.4. didn't exist, examples were for monthly and seasonal chronology changes)
8/22/01, added examples for new section 6.2.3.3.
8/28/01, changed examples under 6.2.3.1. and added new text
5/04, adjusted positioning of alternative enumeration and related instruction; other minor changes