Παραπομπή APA

Dutta ,. Sanjay. (2009). Paryavaran shiksha. Govind Prakashan.

Παραπομπή Chicago Style

Dutta ,. Sanjay. Paryavaran Shiksha. Jaipur: Govind Prakashan, 2009.

Παραπομπή MLA

Dutta ,. Sanjay. Paryavaran Shiksha. Govind Prakashan, 2009.