Citazione Stile APA (7a Edizione)

Gallup, G., & Proctor, W. (1984). Forecast 2000: George Gallup, Jr. predicts the future of America. W. Morrow.

Citazione stile Chigago Style (17a edizione)

Gallup, George, e William Proctor. Forecast 2000: George Gallup, Jr. Predicts the Future of America. New York: W. Morrow, 1984.

Citatione MLA (9a ed.)

Gallup, George, e William Proctor. Forecast 2000: George Gallup, Jr. Predicts the Future of America. W. Morrow, 1984.