Dyfyniad APA

Weeks, A. L. (1963). Reading American history. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Weeks, Albert L. Reading American History. New York: McGraw-Hill, 1963.

Dyfyniad MLA

Weeks, Albert L. Reading American History. New York: McGraw-Hill, 1963.

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