Dyfyniad APA

Westcott, C., & Horst, R. K. (2008). Westcott's plant disease handbook (7th ed.). Springer.

Dyfyniad Arddull Chicago

Westcott, Cynthia, and R. Kenneth Horst. Westcott's Plant Disease Handbook. 7th ed. New York: Springer, 2008.

Dyfyniad MLA

Westcott, Cynthia, and R. Kenneth Horst. Westcott's Plant Disease Handbook. 7th ed. Springer, 2008.

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