APA aipamena

Dutta, A. e. a. (2005). Environmental issues and challenges. A. P. H. Publishing Corporation.

Chicago Style aipamena

Dutta, Abhijit et al. Environmental Issues and Challenges. New Delhi: A. P. H. Publishing Corporation, 2005.

MLA aipamena

Dutta, Abhijit et al. Environmental Issues and Challenges. A. P. H. Publishing Corporation, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.