Dyfyniad APA

(1949). The heritage of America. Boston, Massachusetts: Little, Brown.

Dyfyniad Arddull Chicago

The Heritage of America. Boston, Massachusetts: Little, Brown, 1949.

Dyfyniad MLA

The Heritage of America. Boston, Massachusetts: Little, Brown, 1949.

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