Shapiro, I. M. (2016). Energy audits and improvements for commercial buildings: A guide for energy managers and energy auditors. John Wiley & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रShapiro, Ian M. Energy Audits and Improvements for Commercial Buildings: A Guide for Energy Managers and Energy Auditors. Hoboken, New Jersey: John Wiley & Sons, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्रShapiro, Ian M. Energy Audits and Improvements for Commercial Buildings: A Guide for Energy Managers and Energy Auditors. John Wiley & Sons, 2016.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.