Fell, D. (2011). Vertical gardening: Grow up, not out, for more vegetables and flowers in much less space. Rodale.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFell, Derek. Vertical Gardening: Grow Up, Not Out, for More Vegetables and Flowers in Much Less Space. Emmaus, Pa.: Rodale, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFell, Derek. Vertical Gardening: Grow Up, Not Out, for More Vegetables and Flowers in Much Less Space. Rodale, 2011.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.