Dyfyniad APA

FAO. (1991). FAO economic and social development paper N.102: Manual on fertilizer statistics. Rome: FAO.

Dyfyniad Arddull Chicago

FAO. FAO Economic and Social Development Paper N.102: Manual On Fertilizer Statistics. Rome: FAO, 1991.

Dyfyniad MLA

FAO. FAO Economic and Social Development Paper N.102: Manual On Fertilizer Statistics. Rome: FAO, 1991.

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