APA (7th ed.) Citation

Gallup, G. H. (1948). A guide to public opinion polls / by G. Gallup (2nd ed.). Princeton UP.

Chicago Style (17th ed.) Citation

Gallup, George Horace. A Guide to Public Opinion Polls / by G. Gallup. 2nd ed. Princeton UP, 1948.

MLA (9th ed.) Citation

Gallup, George Horace. A Guide to Public Opinion Polls / by G. Gallup. 2nd ed. Princeton UP, 1948.

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