Παραπομπή APA

Bullen, K. E., & Bolt, B. A. (1985). Introduction to the theory of seismology. Cambridge University Press.

Παραπομπή Chicago Style

Bullen, K. E., και Bruce A. Bolt. Introduction to the Theory of Seismology. New York: Cambridge University Press, 1985.

Παραπομπή MLA

Bullen, K. E., και Bruce A. Bolt. Introduction to the Theory of Seismology. Cambridge University Press, 1985.