APA-referens

Ahrens, L. a. (1965). Physics and Chemistry of the Earth Volume4. Pergamon Press.

Chicago-stil citat

Ahrens, L.H.et al. Physics and Chemistry of the Earth Volume4. Oxford: Pergamon Press, 1965.

MLA-referens

Ahrens, L.H.et al. Physics and Chemistry of the Earth Volume4. Pergamon Press, 1965.