Malhotra, R. (2008). Global Warming. Global Vision Publishing House.
Chicago Style aipamenaMalhotra, Ravi. Global Warming. New Delhi: Global Vision Publishing House, 2008.
MLA aipamenaMalhotra, Ravi. Global Warming. Global Vision Publishing House, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.