Gaya APA

Stein, S., Wysession, M. (2013). An Introduction to Seismology, Earthqology, and Earth Structure (-). Malden: Blackwell.

Gaya MLA

Stein, Seth., Wysession, Michael. "An Introduction to Seismology, Earthqology, and Earth Structure". - Malden: Blackwell, 2013. Text.