Deshpande , B. .. G. (1992). The world of petroleum. Wiley eastern Ltd.
Chicago Style aipamenaDeshpande , B . G. The World of Petroleum. New Dehlhi: Wiley eastern Ltd, 1992.
MLA aipamenaDeshpande , B . G. The World of Petroleum. Wiley eastern Ltd, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.