Gaya APA

Philpotts, A, R., Ague, J, J. (2009). Principles of Igneous and Metamorphic Petrology Second Edition . Cambridge: Cambridge University Press.

Gaya MLA

Philpotts, Anthony, R.., Ague, Jay, J.. "Principles of Igneous and Metamorphic Petrology Second Edition". Cambridge: Cambridge University Press, 2009. Text.