Παραπομπή APA

Read, H., & Watson, J. (1975). Introduction to geology: Early stages of earth history. Wiley Eastern.

Παραπομπή Chicago Style

Read, H.H, και Janet Watson. Introduction to Geology: Early Stages of Earth History. New York: Wiley Eastern, 1975.

Παραπομπή MLA

Read, H.H, και Janet Watson. Introduction to Geology: Early Stages of Earth History. Wiley Eastern, 1975.