APA引文

Harker, A. (1902). Petrology for students: An introduction to the study of rocks under the microscope (3rd ed.). University Press.

Chicago Style (17th ed.) Citation

Harker, Alfred. Petrology for Students: An Introduction to the Study of Rocks Under the Microscope. 3rd ed. Cambridge: University Press, 1902.

MLA引文

Harker, Alfred. Petrology for Students: An Introduction to the Study of Rocks Under the Microscope. 3rd ed. University Press, 1902.