APA (7 वां संस्करण) प्रशस्ति पत्र

U. S. Environmental Protection Agency. Office of Research and Development. (1979). Process design manual for sludge treatment and disposal. Ohio.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

U. S. Environmental Protection Agency. Office of Research and Development. Process Design Manual for Sludge Treatment and Disposal. Cincinnati: Ohio, 1979.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

U. S. Environmental Protection Agency. Office of Research and Development. Process Design Manual for Sludge Treatment and Disposal. Ohio, 1979.