APA-referens (7:e uppl.)

Anderson, D. R., & Dennis J--Williams, T. A. (2014). Statistics for Business and Economics (12th.). Cengage India.

Chicago-referens (17:e uppl.)

Anderson, David R., och Thomas A--Camm Dennis J--Williams. Statistics for Business and Economics. 12th. New Delhi: Cengage India, 2014.

MLA-referens (9:e uppl.)

Anderson, David R., och Thomas A--Camm Dennis J--Williams. Statistics for Business and Economics. 12th. Cengage India, 2014.