YouTube. Cradle-to-Cradle Design, Education and a Future of Abundance, by William McDonough.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रYouTube. Cradle-to-Cradle Design, Education and a Future of Abundance, by William McDonough.
एमएलए (9वां संस्करण) प्रशस्ति पत्रYouTube. Cradle-to-Cradle Design, Education and a Future of Abundance, by William McDonough.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.