Dyfyniad APA

Meyer, W. B. (1996). Human impact on the earth. Cambridge,New York: Cambridge University Press.

Dyfyniad Arddull Chicago

Meyer, William B. Human Impact On the Earth. Cambridge,New York: Cambridge University Press, 1996.

Dyfyniad MLA

Meyer, William B. Human Impact On the Earth. Cambridge,New York: Cambridge University Press, 1996.

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