Dyfyniad APA

Krebs, R. E. (2008). Encyclopedia of scientific principles, laws, and theories. Greenwood press.

Dyfyniad Arddull Chicago

Krebs, Robert E. Encyclopedia of Scientific Principles, Laws, and Theories. Westport: Greenwood press, 2008.

Dyfyniad MLA

Krebs, Robert E. Encyclopedia of Scientific Principles, Laws, and Theories. Greenwood press, 2008.

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