Surendraprathap Singh & Nishant Singh. (2001). Paryavaran aur janjagarkta. Sadik.
Chicago Edition CitationSurendraprathap Singh and Nishant Singh. Paryavaran Aur Janjagarkta. New Delhi: Sadik, 2001.
ציטוט MLASurendraprathap Singh and Nishant Singh. Paryavaran Aur Janjagarkta. Sadik, 2001.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.