Dyfyniad APA

Krall. Proving Up. State University of New York Press.

Dyfyniad Arddull Chicago

Krall. Proving Up. State University of New York Press.

Dyfyniad MLA

Krall. Proving Up. State University of New York Press.

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