Dyfyniad APA

(1993). The pesticide question: Environment, economics, and ethics. New York: Chapman and Hall, Inc.

Dyfyniad Arddull Chicago

The Pesticide Question: Environment, Economics, and Ethics. New York: Chapman and Hall, Inc, 1993.

Dyfyniad MLA

The Pesticide Question: Environment, Economics, and Ethics. New York: Chapman and Hall, Inc, 1993.

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