APA aipamena

Chopra,P.N. (2002). Advanced economic theory. Kalyani publishers.

Chicago Style aipamena

Chopra,P.N. Advanced Economic Theory. Ludhiana: Kalyani publishers, 2002.

MLA aipamena

Chopra,P.N. Advanced Economic Theory. Kalyani publishers, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.