APA-viite (7. p.)

Gilbert, C. M., & Christensen, M. N. j. a. (1967). Physical geology: Laboratory course (2nd ed.). McGraw-HIll.

Chicago-viite (17. p.)

Gilbert, Charles Mervin, ja Mark N. jt. author Christensen. Physical Geology: Laboratory Course. 2nd ed. New York: McGraw-HIll, 1967.

MLA-viite (9. p.)

Gilbert, Charles Mervin, ja Mark N. jt. author Christensen. Physical Geology: Laboratory Course. 2nd ed. McGraw-HIll, 1967.