Dyfyniad APA

Metcalf, R. L. (1982). Introduction to insect pest management (2nd ed.). John Wiley and Sons.

Dyfyniad Arddull Chicago

Metcalf, Robert L. Introduction to Insect Pest Management. 2nd ed. New York: John Wiley and Sons, 1982.

Dyfyniad MLA

Metcalf, Robert L. Introduction to Insect Pest Management. 2nd ed. John Wiley and Sons, 1982.

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