Dyfyniad APA

FAO. (1991). FAO economic and social development series N.49: Commodity review and outlook 1990 - 1991. Rome: FAO.

Dyfyniad Arddull Chicago

FAO. FAO Economic and Social Development Series N.49: Commodity Review and Outlook 1990 - 1991. Rome: FAO, 1991.

Dyfyniad MLA

FAO. FAO Economic and Social Development Series N.49: Commodity Review and Outlook 1990 - 1991. Rome: FAO, 1991.

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