Citazione Stile APA (7a Edizione)

Kelley, R. (1990). The shaping of the American past (5th ed., combined ed.). Prentice Hall.

Citazione stile Chigago Style (17a edizione)

Kelley, Robert. The Shaping of the American Past. 5th ed., combined ed. Englewood Cliffs, NJ: Prentice Hall, 1990.

Citatione MLA (9a ed.)

Kelley, Robert. The Shaping of the American Past. 5th ed., combined ed. Prentice Hall, 1990.