Turner, L. (1978). Oil companies in the international system. George Allen and Unwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTurner, L. Oil Companies in the International System. George Allen and Unwin, 1978.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTurner, L. Oil Companies in the International System. George Allen and Unwin, 1978.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.