PARKER VIC. (2019). LET'S THINK ABOUT THE SUSTAINABLE ENERGY (2018 Ed.). RAINTREE PUBLISHERS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPARKER VIC. LET'S THINK ABOUT THE SUSTAINABLE ENERGY. 2018 Ed. CHICAGO: RAINTREE PUBLISHERS, 2019.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPARKER VIC. LET'S THINK ABOUT THE SUSTAINABLE ENERGY. 2018 Ed. RAINTREE PUBLISHERS, 2019.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.