520 505 506, 540 link to a uniform title authority record. 245$b All characters, including space, up to the first sort character. if this attribute is omitted, then 245$a $b $n and $p 210 242 246 240, 130 Value is from the list at http:/www.loc.gov/marc/sourcecode/authorityfile link to a name authority record. If type attribute omitted, name is unstructured. 245$c 100, 700 $u One or both elements, 'code' and 'text', may be supplied. 'code' must accompanied by an authority attribute, and 'text' may (but need not) be accompanied by an authority attribute. 100, 110, 111, 700, 710, 711 $4 The value of this attribute is from list at http://www.loc.gov/marc/sourcecode/relators/relatorsource.html. If the value is "marcrelator" the content is from list at http://www.loc.gov/marc/sourcecode/relators/relators.html 100, 110, 700, 710 $e (As above for 'code') The value of this attribute is from list at http://www.loc.gov/marc/sourcecode/relators/relatorsource.html. If the value is "marcrelator" the content is from list at http://www.loc.gov/marc/sourcecode/relators/relators.html l (however in this case, for text, authority is optional). 100, 700 110, 710. 111, 711 Value is from the list at http:/www.loc.gov/marc/sourcecode/authorityfile LDR/6 008/26, 008/33, 008/29, 008/30, 008/24+, 008/21+, 008/25, 655 Value of this attribute is from list at: http://www.loc.gov/marc/sourcecode/genre/genre.html. If the value is 'marcgt' then the content is from list at http://www.loc.gov/marc/sourcecode/genre/genrelist.html 008/15-17, 044 260 $a 260 $b 250 LDR/7 310 008/35-37, 041 008/23 or 29, 256 The value of this attribute is from the list at http://www.loc.gov/marc/sourcecode/form/formsource.html. If the value of this attribute is "marcform", the content should be one of the following: "braille", "electronic", "microfiche", "microfilm", "print" 007/13CF 856 $q 300 $a and $c, and 306 $a 008/22, 521 The value of this attribute is from the list at http://www.loc.gov/marc/sourcecode/target/targetsource.html. If the value of this attribute is "marctarget", the content should be one of the following: "adolescent", "adult", "general", "juvenile", "preschool", "specialized" 650, 6xx $x 651, 6xx $z 6xx $y 630 600, 610, 611 752 255 Value is from the list at http:/www.loc.gov/marc/sourcecode/subject 050, 082, 080, 060, 086, 084 Value of this attribute is from the list at http:/www.loc.gov/marc/sourcecode/classification edition qualifies authority, for authorities that have editions, e.g. DDC. link to record for item. if type is omitted: 787, 700, 710, 711, 730 with $t and ind2 = blank 780 785 534, 786 772, 773 770, 774, 700, 710, 711 with $t and ind2 = 2 490, 440, 760, 800, 810, 811, 830 775 776 010, 020, 022, 024, 028, 037, 856 Suggested values include (but are not limited to): "doi", "isbn", "isrc", "ismn" "issn", "issue number", "istc", "lccn", "local", "matrix number", "music publisher", "music plate", "sici", "uri", "upc", "videorecording identifier", "stock number" 856$3 $z in 0XX fields 852 $a $b $j $e Value of this attribute is from list at: http://www.loc.gov/marc/sourcecode/organizations. If the value is "marcorg", see: http://www.loc.gov/marc/organizations 852$3 040 $a, $d 008/00-05 005 001 Who supplied the identifier. From 003 040$b for local extensions If the link is supplied it is in lieu of or in addition to the content. 260 $c, 008/07-14, 033 if omitted, free text is assumed So that a particular date may be distinguished among several dates. Thus for example when sorting MODS records by date, a date with keyDate="yes" would be the date to sort on. It should occur only for one date at most in a given record. ISO 639-2b