Pillai, R. S. N. (2008). Practical Statistics. S. Chand & Company.
Cita Chicago (17th ed.)Pillai, R. S. N. Practical Statistics. New Delhi: S. Chand & Company, 2008.
Cita MLA (9th ed.)Pillai, R. S. N. Practical Statistics. S. Chand & Company, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.