Dyfyniad APA

AGRONOMY JOURNAL: An Inter. Jour. of Agr. and Natura Resource Scines. American Sosiety of Agronomy (ASA).

Dyfyniad Arddull Chicago

AGRONOMY JOURNAL: An Inter. Jour. of Agr. and Natura Resource Scines. Wisconsin: American Sosiety of Agronomy (ASA).

Dyfyniad MLA

AGRONOMY JOURNAL: An Inter. Jour. of Agr. and Natura Resource Scines. American Sosiety of Agronomy (ASA).

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