Stevens, J. N. (1872). The Utilisation of Sewage and the Prevention of River Pollution.
शिकागो स्टाइल उद्धरणStevens, J. N. The Utilisation of Sewage and the Prevention of River Pollution. 1872.
एमएलए उद्धरणStevens, J. N. The Utilisation of Sewage and the Prevention of River Pollution. 1872.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.