Citazione Stile APA (7a Edizione)

Davidson, A. T., & Barbini, J. (1985). The United States: Its history and neighbors. Harcourt Brace Jovanovich.

Citazione stile Chigago Style (17a edizione)

Davidson, Anita T., e John Barbini. The United States: Its History and Neighbors. Orlando [u.a.]: Harcourt Brace Jovanovich, 1985.

Citatione MLA (9a ed.)

Davidson, Anita T., e John Barbini. The United States: Its History and Neighbors. Harcourt Brace Jovanovich, 1985.