APA (7th ed.) Citation

Gallup Organization. (1993). The Gallup poll monthly index, 1965-1993. The Organization.

Chicago Style (17th ed.) Citation

Gallup Organization. The Gallup Poll Monthly Index, 1965-1993. Princeton, N.J.: The Organization, 1993.

MLA (9th ed.) Citation

Gallup Organization. The Gallup Poll Monthly Index, 1965-1993. The Organization, 1993.

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