Organisation for Economic Co-operation and Deverlopment. (1973). Oil: The Present Situation and Future Prospects. Paris: Oecd Publications.
শিকাগো স্টাইলে সাইটেশনOrganisation for Economic Co-operation and Deverlopment. Oil: The Present Situation and Future Prospects. Paris: Oecd Publications, 1973.
এমএলএ সাইটেশনOrganisation for Economic Co-operation and Deverlopment. Oil: The Present Situation and Future Prospects. Paris: Oecd Publications, 1973.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.