APA aipamena

Ashish Ghosh. (2008). Environmental conservation: Challenges & actions. APH.

Chicago Style aipamena

Ashish Ghosh. Environmental Conservation: Challenges & Actions. New Delhi: APH, 2008.

MLA aipamena

Ashish Ghosh. Environmental Conservation: Challenges & Actions. APH, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.