Παραπομπή APA

Philpotts, a. R., & Ague,Jay J. (2009). Principles of igneous and metamorphic petrology (2nd ed.). Cambridge University Press.

Παραπομπή Chicago Style

Philpotts, anthony R., και Ague,Jay J. Principles of Igneous and Metamorphic Petrology. 2nd ed. Camebridge: Cambridge University Press, 2009.

Παραπομπή MLA

Philpotts, anthony R., και Ague,Jay J. Principles of Igneous and Metamorphic Petrology. 2nd ed. Cambridge University Press, 2009.