APA aipamena

Bhatt, S. (2004). Environmental protection and sustainable development. A. P. H. Publishing.

Chicago Style aipamena

Bhatt, S. Environmental Protection and Sustainable Development. New Delhi: A. P. H. Publishing, 2004.

MLA aipamena

Bhatt, S. Environmental Protection and Sustainable Development. A. P. H. Publishing, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.