APA (7th ed.) Citation

World's Fair New York, NY, & Monaghan, F. (1939). Official guide book New York World's Fair: 1939. Exposition Publ.

Chicago Style (17th ed.) Citation

World's Fair New York, NY, and Frank Monaghan. Official Guide Book New York World's Fair: 1939. New York: Exposition Publ, 1939.

MLA (9th ed.) Citation

World's Fair New York, NY, and Frank Monaghan. Official Guide Book New York World's Fair: 1939. Exposition Publ, 1939.