Dyfyniad APA

(1988). Film and video catalogue: National Film Board of Canada. The Board.

Dyfyniad Arddull Chicago

Film and Video Catalogue: National Film Board of Canada. Montreal: The Board, 1988.

Dyfyniad MLA

Film and Video Catalogue: National Film Board of Canada. The Board, 1988.

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