APA-referens (7:e uppl.)

O'Brien, J. A. (2003). Introduction to information systems (11th ed.). McGraw-Hill.

Chicago-referens (17:e uppl.)

O'Brien, James A. Introduction to Information Systems. 11th ed. Boston: McGraw-Hill, 2003.

MLA-referens (9:e uppl.)

O'Brien, James A. Introduction to Information Systems. 11th ed. McGraw-Hill, 2003.