Dyfyniad APA

Babb. Emerald City. State University of New York Press.

Dyfyniad Arddull Chicago

Babb. Emerald City. State University of New York Press.

Dyfyniad MLA

Babb. Emerald City. State University of New York Press.

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