Dyfyniad APA

Dobrow. Knocking on Heaven’s Door. University of Massachusetts Press.

Dyfyniad Arddull Chicago

Dobrow. Knocking on Heaven’s Door. University of Massachusetts Press.

Dyfyniad MLA

Dobrow. Knocking on Heaven’s Door. University of Massachusetts Press.

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