Dyfyniad APA

(2002). Report of the international narcotics control board for 2001. United Nations.

Dyfyniad Arddull Chicago

Report of the International Narcotics Control Board for 2001. United Nations, 2002.

Dyfyniad MLA

Report of the International Narcotics Control Board for 2001. United Nations, 2002.

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