Citazione Stile APA (7a Edizione)

Rugg, H. O. (1937). The conquest of America: A history of American civilization : economic and social. Ginn.

Citazione stile Chigago Style (17a edizione)

Rugg, Harold Ordway. The Conquest of America: A History of American Civilization : Economic and Social. Boston: Ginn, 1937.

Citatione MLA (9a ed.)

Rugg, Harold Ordway. The Conquest of America: A History of American Civilization : Economic and Social. Ginn, 1937.