Dyfyniad APA

Wagner, T. (1993). In our backyard: A guide to understanding pollution and its effects. New York: John Wiley & Sons, Inc.

Dyfyniad Arddull Chicago

Wagner, Travis. In Our Backyard: A Guide to Understanding Pollution and Its Effects. New York: John Wiley & Sons, Inc, 1993.

Dyfyniad MLA

Wagner, Travis. In Our Backyard: A Guide to Understanding Pollution and Its Effects. New York: John Wiley & Sons, Inc, 1993.

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