(1961). The chemical industry 1967-1968. Paris: Organization for Economic Cooperation and Development.
शिकागो स्टाइल उद्धरणThe Chemical Industry 1967-1968. Paris: Organization for Economic Cooperation and Development, 1961.
एमएलए उद्धरणThe Chemical Industry 1967-1968. Paris: Organization for Economic Cooperation and Development, 1961.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.