APA aipamena

Joseph, B. (2005). Environmental studies. Tata McGraw Hill.

Chicago Style aipamena

Joseph, Benny. Environmental Studies. New Delhi: Tata McGraw Hill, 2005.

MLA aipamena

Joseph, Benny. Environmental Studies. Tata McGraw Hill, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.