APA aipamena

Katar Singh & Anil Shishodia. (2007). Environmental economics: Theory and applications. Sage.

Chicago Style aipamena

Katar Singh and Anil Shishodia. Environmental Economics: Theory and Applications. New Delhi: Sage, 2007.

MLA aipamena

Katar Singh and Anil Shishodia. Environmental Economics: Theory and Applications. Sage, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.