Dyfyniad APA

(1987). Soybeans: Improvement, production and uses. USA: American Society of Agronomy, Inc.

Dyfyniad Arddull Chicago

Soybeans: Improvement, Production and Uses. USA: American Society of Agronomy, Inc, 1987.

Dyfyniad MLA

Soybeans: Improvement, Production and Uses. USA: American Society of Agronomy, Inc, 1987.

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