Hasan, Z. (1975). Theory of profit. Vikas.
Chicago Style aipamenaHasan, Zubair. Theory of Profit. Delhi: Vikas, 1975.
MLA aipamenaHasan, Zubair. Theory of Profit. Vikas, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Hasan, Z. (1975). Theory of profit. Vikas.
Chicago Style aipamenaHasan, Zubair. Theory of Profit. Delhi: Vikas, 1975.
MLA aipamenaHasan, Zubair. Theory of Profit. Vikas, 1975.