Dyfyniad APA

Open Rivers | University of Minnesota Libraries Publishing. Cambridge University Press.

Dyfyniad Arddull Chicago

Open Rivers | University of Minnesota Libraries Publishing. Cambridge University Press.

Dyfyniad MLA

Open Rivers | University of Minnesota Libraries Publishing. Cambridge University Press.

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