(1999). Ullmann's industrial organic chemicals: Starting materials and intermediates. Weinheim ; Cambridge: Wiley-VCH.
शिकागो स्टाइल उद्धरणUllmann's Industrial Organic Chemicals: Starting Materials and Intermediates. Weinheim ; Cambridge: Wiley-VCH, 1999.
एमएलए उद्धरणUllmann's Industrial Organic Chemicals: Starting Materials and Intermediates. Weinheim ; Cambridge: Wiley-VCH, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.