Viessman, W., & Viessman, W. H. (1999). Water supply and pollution control/6th ed (6th ed.). Addison Wesley.
शिकागो स्टाइल उद्धरणViessman, Warren, और Warren Hammer Viessman. Water Supply and Pollution Control/6th Ed. 6th ed. California: Addison Wesley, 1999.
एमएलए उद्धरणViessman, Warren, और Warren Hammer Viessman. Water Supply and Pollution Control/6th Ed. 6th ed. Addison Wesley, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.