Nag, N. (1986). Bussiness mathematics and statistics. Kalyani.
Chicago Style aipamenaNag, N.K. Bussiness Mathematics and Statistics. New Delhi: Kalyani, 1986.
MLA aipamenaNag, N.K. Bussiness Mathematics and Statistics. Kalyani, 1986.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.