Dyfyniad APA

(1987). The Green revolution revisited: Critique and alternatives. Allen and Unwin.

Dyfyniad Arddull Chicago

The Green Revolution Revisited: Critique and Alternatives. London: Allen and Unwin, 1987.

Dyfyniad MLA

The Green Revolution Revisited: Critique and Alternatives. Allen and Unwin, 1987.

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