APA (7 वां संस्करण) प्रशस्ति पत्र
Air Conditioning Contractors of America, PHCC Educational Foundation, & Refrigeration Service Engineers Society. (2011). HVACR 301. Delmar Cengage Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Air Conditioning Contractors of America, PHCC Educational Foundation, और Refrigeration Service Engineers Society. HVACR 301. Clifton Park, New York: Delmar Cengage Learning, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Air Conditioning Contractors of America, et al. HVACR 301. Delmar Cengage Learning, 2011.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.