Dyfyniad APA

Gavian, R. W., & Hamm, W. A. (1957). The American story. D.C. Heath.

Dyfyniad Arddull Chicago

Gavian, Ruth Wood, and William Albert Hamm. The American Story. Boston: D.C. Heath, 1957.

Dyfyniad MLA

Gavian, Ruth Wood, and William Albert Hamm. The American Story. D.C. Heath, 1957.

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