Sengar, D. S. (2007). Environmental law (Eastern economy ed.). PHI Learning Private Limited.
Chicago Style aipamenaSengar, Dharmendra S. Environmental Law. Eastern economy ed. New Delhi: PHI Learning Private Limited, 2007.
MLA aipamenaSengar, Dharmendra S. Environmental Law. Eastern economy ed. PHI Learning Private Limited, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.