Gupta, S. (1997). Statistical methods (28th ed.). Sultan Chand and sons.
Čikaški stil citiranjaGupta, S.P. Statistical Methods. 28th ed. New Delhi: Sultan Chand and sons, 1997.
MLA način citiranjaGupta, S.P. Statistical Methods. 28th ed. Sultan Chand and sons, 1997.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.