Dyfyniad APA

Mongillo, J. (2004). Teen guides to Environmental science Vol 4, Human impact on the environment.

Dyfyniad Arddull Chicago

Mongillo, John. Teen Guides to Environmental Science Vol 4, Human Impact on the Environment. Westport, Greenwood Press, 2004.

Dyfyniad MLA

Mongillo, John. Teen Guides to Environmental Science Vol 4, Human Impact on the Environment. 2004.

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