Dyfyniad APA

(1994). Dryland forestry: Planning and management. New York: Wiley.

Dyfyniad Arddull Chicago

Dryland Forestry: Planning and Management. New York: Wiley, 1994.

Dyfyniad MLA

Dryland Forestry: Planning and Management. New York: Wiley, 1994.

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