APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.