APA (7th ed.) Citation

United States Geographic Board. (1932). Sixth report of U.S. Geographic Board, 1890 to 1932. GPO.

Chicago Style (17th ed.) Citation

United States Geographic Board. Sixth Report of U.S. Geographic Board, 1890 to 1932. [Washington]: GPO, 1932.

MLA (9th ed.) Citation

United States Geographic Board. Sixth Report of U.S. Geographic Board, 1890 to 1932. GPO, 1932.

Warning: These citations may not always be 100% accurate.