Cita APA

Sudha Singh. (2011). Paryavaran Shiksha. Lok bharati prakashan.

Chicago Edition Citation

Sudha Singh. Paryavaran Shiksha. Allahabad: Lok bharati prakashan, 2011.

Cita MLA

Sudha Singh. Paryavaran Shiksha. Lok bharati prakashan, 2011.