Organisation for Economic Co-operation and Development. (1979). The Petrochemical Industry. France: Organisation for Economic Co-operation and Development.
शिकागो स्टाइल उद्धरणOrganisation for Economic Co-operation and Development. The Petrochemical Industry. France: Organisation for Economic Co-operation and Development, 1979.
एमएलए उद्धरणOrganisation for Economic Co-operation and Development. The Petrochemical Industry. France: Organisation for Economic Co-operation and Development, 1979.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.