APA (7th ed.) Citation

Levy, M., & Salvadori, M. (1995). Why the earth quakes. Norton.

Chicago Style (17th ed.) Citation

Levy, Matthys, and Mario Salvadori. Why the Earth Quakes. New York: Norton, 1995.

MLA (9th ed.) Citation

Levy, Matthys, and Mario Salvadori. Why the Earth Quakes. Norton, 1995.

Warning: These citations may not always be 100% accurate.