एपीए उद्धरण

Organisation for Economic Co-operation and Development. (1979). The Petrochemical Industry. France: Organisation for Economic Co-operation and Development.

शिकागो स्टाइल उद्धरण

Organisation for Economic Co-operation and Development. The Petrochemical Industry. France: Organisation for Economic Co-operation and Development, 1979.

एमएलए उद्धरण

Organisation for Economic Co-operation and Development. The Petrochemical Industry. France: Organisation for Economic Co-operation and Development, 1979.