Cita APA (7th ed.)
Narayan, S., & P.K. Mittal. (2005). Quantitative methods. S. Chand & Company Ltd.
Cita Chicago (17th ed.)
Narayan, Shanti, i P.K. Mittal. Quantitative Methods. New Delhi: S. Chand & Company Ltd, 2005.
Cita MLA (9th ed.)
Narayan, Shanti, i P.K. Mittal. Quantitative Methods. S. Chand & Company Ltd, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.