APA (7 वां संस्करण) प्रशस्ति पत्र
National Research Council (U.S.). Committee on Undiscovered Oil and Gas Resources & ebrary, Inc. (1991). Undiscovered oil and gas resources: An evaluation of the Department of the Interior's 1989 assessment procedures. National Academy Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
National Research Council (U.S.). Committee on Undiscovered Oil and Gas Resources और Inc ebrary. Undiscovered Oil and Gas Resources: An Evaluation of the Department of the Interior's 1989 Assessment Procedures. Washington, D.C.: National Academy Press, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
National Research Council (U.S.). Committee on Undiscovered Oil and Gas Resources और Inc ebrary. Undiscovered Oil and Gas Resources: An Evaluation of the Department of the Interior's 1989 Assessment Procedures. National Academy Press, 1991.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.