Sauer, H. J. J., & Howell, R. H. (1982). Solutions manual to environmental control principles: An educational supplement to ASHRAE handbook 1981 fundamentals volume. American Society of Heating, Refrigerating and Air-conditioning Engineers, Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSauer, Harry J. Jr, और Ronald H. Howell. Solutions Manual to Environmental Control Principles: An Educational Supplement to ASHRAE Handbook 1981 Fundamentals Volume. Atlanta, Ga: American Society of Heating, Refrigerating and Air-conditioning Engineers, Inc, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSauer, Harry J. Jr, और Ronald H. Howell. Solutions Manual to Environmental Control Principles: An Educational Supplement to ASHRAE Handbook 1981 Fundamentals Volume. American Society of Heating, Refrigerating and Air-conditioning Engineers, Inc, 1982.