Dyfyniad APA

Gates, A. E. (2004). encyclopedia of notable scientists: Earth scientists A to Z. Viva Books.

Dyfyniad Arddull Chicago

Gates, Alexander E. Encyclopedia of Notable Scientists: Earth Scientists A to Z. New Delhi: Viva Books, 2004.

Dyfyniad MLA

Gates, Alexander E. Encyclopedia of Notable Scientists: Earth Scientists A to Z. Viva Books, 2004.

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