United States. Fuel Administration. (1994). Boiler water treatment. Govt. print. off..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States. Fuel Administration. Boiler Water Treatment. Washington: Govt. print. off., 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited States. Fuel Administration. Boiler Water Treatment. Govt. print. off., 1994.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.