Citazione Stile APA (7a Edizione)

Kownslar, A. O., & Smart, T. L. (1977). People and our world: A study of world history. Holt, Rinehart and Winston.

Citazione stile Chigago Style (17a edizione)

Kownslar, Allan O., e Terry L. Smart. People and Our World: A Study of World History. New York [u.a.]: Holt, Rinehart and Winston, 1977.

Citatione MLA (9a ed.)

Kownslar, Allan O., e Terry L. Smart. People and Our World: A Study of World History. Holt, Rinehart and Winston, 1977.