Cita APA (7th ed.)

Hatch, F., Wells, A. K., & Wills, M. K. (1972). Petrology of the igneous rocks (13th ed.). Allen and Unwin.

Cita Chicago (17th ed.)

Hatch, F.H., A. K. Wells, i M. K. Wills. Petrology of the Igneous Rocks. 13th ed. London: Allen and Unwin, 1972.

Cita MLA (9th ed.)

Hatch, F.H., et al. Petrology of the Igneous Rocks. 13th ed. Allen and Unwin, 1972.