Organisation for Economic Co-operation and Development, P. (1980). Steel in the 80s: Paris symposium; February 1980. Oxford.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOrganisation for Economic Co-operation and Development, Paris. Steel in the 80s: Paris Symposium; February 1980. Oxford, 1980.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOrganisation for Economic Co-operation and Development, Paris. Steel in the 80s: Paris Symposium; February 1980. Oxford, 1980.
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