Fell, D. (2005). Encyclopedia of garden design & structure: Ideas and inspiration for your garden. Firefly Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFell, Derek. Encyclopedia of Garden Design & Structure: Ideas and Inspiration for Your Garden. Richmond Hill, Ont.: Firefly Books, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFell, Derek. Encyclopedia of Garden Design & Structure: Ideas and Inspiration for Your Garden. Firefly Books, 2005.
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