Παραπομπή APA

Saraswathy Singh. (2011). Paryavaran Swachta. Banke Bihari Prakashan.

Παραπομπή Chicago Style

Saraswathy Singh. Paryavaran Swachta. Jaipur: Banke Bihari Prakashan, 2011.

Παραπομπή MLA

Saraswathy Singh. Paryavaran Swachta. Banke Bihari Prakashan, 2011.