Organisation for Economic Co-operation and Development. (1979). The Petrochemical Industry. France: Organisation for Economic Co-operation and Development.
শিকাগো স্টাইলে সাইটেশনOrganisation for Economic Co-operation and Development. The Petrochemical Industry. France: Organisation for Economic Co-operation and Development, 1979.
এমএলএ সাইটেশনOrganisation for Economic Co-operation and Development. The Petrochemical Industry. France: Organisation for Economic Co-operation and Development, 1979.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.