Dyfyniad APA

Roberts, D. A. (1978). Fundamentals of plant-pest control. W.H. Freeman and Company.

Dyfyniad Arddull Chicago

Roberts, Daniel Altman. Fundamentals of Plant-pest Control. San Francisco: W.H. Freeman and Company, 1978.

Dyfyniad MLA

Roberts, Daniel Altman. Fundamentals of Plant-pest Control. W.H. Freeman and Company, 1978.

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