Citazione Stile APA (7a Edizione)

TYRRELL, G. (1967). Principles of petrology : an introduction: To the science of rocks. Methuen.

Citazione stile Chigago Style (17a edizione)

TYRRELL, G.W. Principles of Petrology : An Introduction: To the Science of Rocks. London: Methuen, 1967.

Citatione MLA (9a ed.)

TYRRELL, G.W. Principles of Petrology : An Introduction: To the Science of Rocks. Methuen, 1967.