Dyfyniad APA

Cordier, R. W., & Robert, E. B. (1953). History of our United States. Rand McNally.

Dyfyniad Arddull Chicago

Cordier, Ralph Waldo, and E. B. Robert. History of Our United States. New York: Rand McNally, 1953.

Dyfyniad MLA

Cordier, Ralph Waldo, and E. B. Robert. History of Our United States. Rand McNally, 1953.

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