APA-referens (7:e uppl.)

ALLISON, I. S. (1974). Geology: The science of a changing earth. McGraw-Hill.

Chicago-referens (17:e uppl.)

ALLISON, Ira S. Geology: The Science of a Changing Earth. New York: McGraw-Hill, 1974.

MLA-referens (9:e uppl.)

ALLISON, Ira S. Geology: The Science of a Changing Earth. McGraw-Hill, 1974.