APA (7th ed.) Citation

Aki, K., & Richards, P. G. (1980). Quantitative seismology: Theory and methods. Freeman.

Chicago Style (17th ed.) Citation

Aki, Keiiti, and Paul G. Richards. Quantitative Seismology: Theory and Methods. San Francisco, Calif: Freeman, 1980.

MLA (9th ed.) Citation

Aki, Keiiti, and Paul G. Richards. Quantitative Seismology: Theory and Methods. Freeman, 1980.