Παραπομπή APA

Branson, E. B., & Tarr, W. A. (1969). Introduction to geology (3rd. ed.). McGraw-Hill.

Παραπομπή Chicago Style

Branson, E. B., και W. A. Tarr. Introduction to Geology. 3rd. ed. New York: McGraw-Hill, 1969.

Παραπομπή MLA

Branson, E. B., και W. A. Tarr. Introduction to Geology. 3rd. ed. McGraw-Hill, 1969.