Railroad maps of the United States :
a selective annotated bibliography of original 19th-century maps in the Geography and Map Division of the Library of Congress /
compiled by Andrew M. Modelski.

APA Citation

Library of Congress. Geography and Map Division., Modelski, A. M. (1975). Railroad maps of the United States: a selective annotated bibliography of original 19th-century maps in the Geography and Map Division of the Library of Congress. Washington: The Library : for sale by the Supt. of Docs., U.S. Govt. Print. Off..

MLA Citation

Library of Congress. Geography and Map Division, and Andrew M. Modelski. Railroad Maps of the United States: a Selective Annotated Bibliography of Original 19th-century Maps In the Geography And Map Division of the Library of Congress. Washington: The Library : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1975.