Powell, S. T. (1954). Water conditioning for industry. McGraw-Hill Book Company.
शिकागो स्टाइल उद्धरणPowell, Sheppard T. Water Conditioning for Industry. N.Y: McGraw-Hill Book Company, 1954.
एमएलए उद्धरणPowell, Sheppard T. Water Conditioning for Industry. McGraw-Hill Book Company, 1954.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.