Cita APA (7a ed.)

Whitten, D. G. A., & Brooks, J. R. V. (1972). A dictionary of geology. Penguin Books.

Cita Chicago Style (17a ed.)

Whitten, D. G. A., y J. R. V. Brooks. A Dictionary of Geology. Middlesex, England: Penguin Books, 1972.

Cita MLA (8a ed.)

Whitten, D. G. A., y J. R. V. Brooks. A Dictionary of Geology. Penguin Books, 1972.