Gupta,S P. (2021). Statistical Methods (46 th Ed.). S. Chand.
Cita Chicago (17th ed.)Gupta,S P. Statistical Methods. 46 th Ed. New Delhi: S. Chand, 2021.
Cita MLA (9th ed.)Gupta,S P. Statistical Methods. 46 th Ed. S. Chand, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.