Harker, A. (1902). Petrology for students: An introduction to the study of rocks under the microscope (3rd ed.). University Press.
Citação norma ChicagoHarker, Alfred. Petrology for Students: An Introduction to the Study of Rocks Under the Microscope. 3rd ed. Cambridge: University Press, 1902.
Citação norma MLAHarker, Alfred. Petrology for Students: An Introduction to the Study of Rocks Under the Microscope. 3rd ed. University Press, 1902.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.