APA-viite (7. p.)

Croneis, C. . G., & Krumbein, W. C. (1936). Down to earth: An introduction to geology. University of Chicago Press.

Chicago-viite (17. p.)

Croneis, Cary Gardener, ja William C. Krumbein. Down to Earth: An Introduction to Geology. Chicago: University of Chicago Press, 1936.

MLA-viite (9. p.)

Croneis, Cary Gardener, ja William C. Krumbein. Down to Earth: An Introduction to Geology. University of Chicago Press, 1936.