Louv, R. (2011). The nature principle: Human restoration and the end of nature-deficit disorder. Algonquin Books of Chapel Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLouv, Richard. The Nature Principle: Human Restoration and the End of Nature-deficit Disorder. Chapel Hill, N.C.: Algonquin Books of Chapel Hill, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLouv, Richard. The Nature Principle: Human Restoration and the End of Nature-deficit Disorder. Algonquin Books of Chapel Hill, 2011.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.