(1971). The problems of persistent chemicals. Paris: Organisation for Economic Co-operation and Development.
শিকাগো স্টাইলে সাইটেশনThe Problems of Persistent Chemicals. Paris: Organisation for Economic Co-operation and Development, 1971.
এমএলএ সাইটেশনThe Problems of Persistent Chemicals. Paris: Organisation for Economic Co-operation and Development, 1971.
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