Cita APA

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

Citación estilo Chicago

Whitten, D. G. A., and J. R. V. Brooks. The Penguin Dictionary of Geology. London: Penguin Books, 1972.

Cita MLA

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