Dyfyniad APA

(1978). Pre-sessional course for overseas students: (An occasional paper). London: British Council.

Dyfyniad Arddull Chicago

Pre-sessional Course for Overseas Students: (An Occasional Paper). London: British Council, 1978.

Dyfyniad MLA

Pre-sessional Course for Overseas Students: (An Occasional Paper). London: British Council, 1978.

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