Citations are generated automatically from bibliographic data as
a convenience, and may not be complete or accurate.
Chicago citation style:
Williams, Ira Jewell. Asphalt materials from Mexico. [New York?, 1920] Pdf. https://www.loc.gov/item/21002001/.
APA citation style:
Williams, I. J. (1920) Asphalt materials from Mexico. [New York?] [Pdf] Retrieved from the Library of Congress, https://www.loc.gov/item/21002001/.
MLA citation style:
Williams, Ira Jewell. Asphalt materials from Mexico. [New York?, 1920] Pdf. Retrieved from the Library of Congress, <www.loc.gov/item/21002001/>.