APA aipamena

V.S.Sharma. (2008). Environmental education. Anmol.

Chicago Style aipamena

V.S.Sharma. Environmental Education. New Delhi: Anmol, 2008.

MLA aipamena

V.S.Sharma. Environmental Education. Anmol, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.