Cita APA (7a ed.)

International Conference on Kimberlites Cape Town, South Africa, & Ahrens, L. H. (1975). Physics and chemistry of the earth. Pergamon Press.

Cita Chicago Style (17a ed.)

International Conference on Kimberlites Cape Town, South Africa, y L. H. Ahrens. Physics and Chemistry of the Earth. Oxford: Pergamon Press, 1975.

Cita MLA (8a ed.)

International Conference on Kimberlites Cape Town, South Africa, y L. H. Ahrens. Physics and Chemistry of the Earth. Pergamon Press, 1975.