Malmqvist, B. (1989). Swedish heat pump projects 1986-1987: Research-development-full-scale experiments. Swedish Council for Building Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMalmqvist, Bertil. Swedish Heat Pump Projects 1986-1987: Research-development-full-scale Experiments. Stockholm: Swedish Council for Building Research, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMalmqvist, Bertil. Swedish Heat Pump Projects 1986-1987: Research-development-full-scale Experiments. Swedish Council for Building Research, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.