Dyfyniad APA

(1995). Biological control: Benefits and risks. Paris,Cambridge: OECD/OCDE,New York.

Dyfyniad Arddull Chicago

Biological Control: Benefits and Risks. Paris,Cambridge: OECD/OCDE,New York, 1995.

Dyfyniad MLA

Biological Control: Benefits and Risks. Paris,Cambridge: OECD/OCDE,New York, 1995.

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