Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.