Purohit, S. S., & Kakrani, B. (2002). Air environment and pollution. Agrobios (India).
Chicago Style aipamenaPurohit, S. S., and Bhanu Kakrani. Air Environment and Pollution. Jodhpur: Agrobios (India), 2002.
MLA aipamenaPurohit, S. S., and Bhanu Kakrani. Air Environment and Pollution. Agrobios (India), 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.