APA-referens (7:e uppl.)

Cohen, D. (1992). College algebra (3rd ed.). West Publishing Co.

Chicago-referens (17:e uppl.)

Cohen, David. College Algebra. 3rd ed. New York: West Publishing Co, 1992.

MLA-referens (9:e uppl.)

Cohen, David. College Algebra. 3rd ed. West Publishing Co, 1992.