Dyfyniad APA

FAO & UNESCO. (1973). Irrigation, Drainage and Salinity. Hutchinson.

Dyfyniad Arddull Chicago

FAO and UNESCO. Irrigation, Drainage and Salinity. London: Hutchinson, 1973.

Dyfyniad MLA

FAO and UNESCO. Irrigation, Drainage and Salinity. Hutchinson, 1973.

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