Von Trapp, S. J. (1997). Landscaping from the ground up. Taunton Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVon Trapp, Sara Jane. Landscaping from the Ground Up. Newtown, CT: Taunton Press, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVon Trapp, Sara Jane. Landscaping from the Ground Up. Taunton Press, 1997.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.