Dyfyniad APA

FAO. (1989). FAO statistical development series N.3: Sampling methods for agricultural surveys. Rome: FAO.

Dyfyniad Arddull Chicago

FAO. FAO Statistical Development Series N.3: Sampling Methods for Agricultural Surveys. Rome: FAO, 1989.

Dyfyniad MLA

FAO. FAO Statistical Development Series N.3: Sampling Methods for Agricultural Surveys. Rome: FAO, 1989.

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