Kumar, A. (2010). Environmental Management and Sustainable Development. Daya Publishing House.
Chicago Style (17th ed.) ZitazioaKumar, Arvind. Environmental Management and Sustainable Development. New Delhi: Daya Publishing House, 2010.
MLA (9th ed.) ZitazioaKumar, Arvind. Environmental Management and Sustainable Development. Daya Publishing House, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.