APA aipamena

(2007). The American promise: A compact history (3rd ed.). Boston: Bedford/St. Martin's.

Chicago Style aipamena

The American Promise: A Compact History. 3rd ed. Boston: Bedford/St. Martin's, 2007.

MLA aipamena

The American Promise: A Compact History. 3rd ed. Boston: Bedford/St. Martin's, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.