Indian Institute of Petroleum. Annual report ... of the Indian Institute of Petroleum. s.n..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndian Institute of Petroleum. Annual Report ... of the Indian Institute of Petroleum. [Dehra Dun, India: s.n..
एमएलए (8वां संस्करण) प्रशस्ति पत्रIndian Institute of Petroleum. Annual Report ... of the Indian Institute of Petroleum. s.n..
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.