APA aipamena

Behara ,H.P. (2009). Envirement Management. Himalaya.

Chicago Style aipamena

Behara ,H.P. Envirement Management. Himalaya, 2009.

MLA aipamena

Behara ,H.P. Envirement Management. Himalaya, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.