APA Citatie

Ahrens, L. H., Press, F., & Runcorn, S. K. (1956). Physics and chemistry of the earth. Pergamon [etc.].

Chicago Style citaat

Ahrens, L. H., Frank Press, en S. K. Runcorn. Physics and Chemistry of the Earth. New York: Pergamon [etc.], 1956.

MLA citatie

Ahrens, L. H., et al. Physics and Chemistry of the Earth. Pergamon [etc.], 1956.