Cita APA (7a ed.)

Levy, M., Salvadori, M., & Lilly, M. (1997). Why the earth quakes (First Norton paperback.). W. W. Norton & Company, Inc.

Cita Chicago Style (17a ed.)

Levy, Matthys, Mario Salvadori, y Michael Lilly. Why the Earth Quakes. First Norton paperback. New York, NY: W. W. Norton & Company, Inc, 1997.

Cita MLA (9a ed.)

Levy, Matthys, et al. Why the Earth Quakes. First Norton paperback. W. W. Norton & Company, Inc, 1997.