APA (7th ed.) Citation

Modelski, A. M. (1984). Railroad maps of North America: The first hundred years. Library of Congress.

Chicago Style (17th ed.) Citation

Modelski, Andrew M. Railroad Maps of North America: The First Hundred Years. Washington: Library of Congress, 1984.

MLA (8th ed.) Citation

Modelski, Andrew M. Railroad Maps of North America: The First Hundred Years. Library of Congress, 1984.