APA-referens (7:e uppl.)

Bello, I. (2012). Basic college mathematics: A real-world approach (3rd ed.). MacGraw-Hill.

Chicago-referens (17:e uppl.)

Bello, Ignacio. Basic College Mathematics: A Real-world Approach. 3rd ed. New York: MacGraw-Hill, 2012.

MLA-referens (9:e uppl.)

Bello, Ignacio. Basic College Mathematics: A Real-world Approach. 3rd ed. MacGraw-Hill, 2012.