Παραπομπή APA

Singh, S., Parashar, A. K., & Singh, H. (1997). Econometrics and mathematical economics (6th rev. ed.). S.Chand & company.

Παραπομπή Chicago Style

Singh, S.P, Anil K. Parashar, και H.P Singh. Econometrics and Mathematical Economics. 6th rev. ed. New Delhi: S.Chand & company, 1997.

Παραπομπή MLA

Singh, S.P, et al. Econometrics and Mathematical Economics. 6th rev. ed. S.Chand & company, 1997.