Παραπομπή APA

Gupta, C. B. (1978). Introduction to statistical methods (8th rev. ed.). Vikas.

Παραπομπή Chicago Style

Gupta, C. B. Introduction to Statistical Methods. 8th rev. ed. New Delhi: Vikas, 1978.

Παραπομπή MLA

Gupta, C. B. Introduction to Statistical Methods. 8th rev. ed. Vikas, 1978.