APA-referens (7:e uppl.)

Gupta, C. B. (2004). An introduction to statistical methods (23rd Rev. ed.). Vikas Publishing Hse..

Chicago-referens (17:e uppl.)

Gupta, C. B. An Introduction to Statistical Methods. 23rd Rev. ed. New Delhi: Vikas Publishing Hse., 2004.

MLA-referens (9:e uppl.)

Gupta, C. B. An Introduction to Statistical Methods. 23rd Rev. ed. Vikas Publishing Hse., 2004.