Dyfyniad APA

Bulletin of the National Library of South Africa. National Library of South Africa.

Dyfyniad Arddull Chicago

Bulletin of the National Library of South Africa. National Library of South Africa.

Dyfyniad MLA

Bulletin of the National Library of South Africa. National Library of South Africa.

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