APA aipamena

Sudha Singh. (2011). Paryavaran shiksha. Lokbharati.

Chicago Style aipamena

Sudha Singh. Paryavaran Shiksha. Alahabad: Lokbharati, 2011.

MLA aipamena

Sudha Singh. Paryavaran Shiksha. Lokbharati, 2011.