Cita APA

Gallup, G. H. (1972). The Gallup Poll: Public opinion, 1935-1971. Random House.

Citación estilo Chicago

Gallup, George Horace. The Gallup Poll: Public Opinion, 1935-1971. New York: Random House, 1972.

Cita MLA

Gallup, George Horace. The Gallup Poll: Public Opinion, 1935-1971. Random House, 1972.

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