Dyfyniad APA

Martin, H. (1983). The Scientific principles of crop protection. (3rd ed.). CBS.

Dyfyniad Arddull Chicago

Martin, Hubert. The Scientific Principles of Crop Protection. 3rd ed. New Delhi: CBS, 1983.

Dyfyniad MLA

Martin, Hubert. The Scientific Principles of Crop Protection. 3rd ed. CBS, 1983.

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