Dyfyniad APA

(1981). Irrigated soybean production in Arid and Semi-Arid regions. Illinois: University of Illinois.

Dyfyniad Arddull Chicago

Irrigated Soybean Production in Arid and Semi-Arid Regions. Illinois: University of Illinois, 1981.

Dyfyniad MLA

Irrigated Soybean Production in Arid and Semi-Arid Regions. Illinois: University of Illinois, 1981.

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