Hargreaves, G. (2009). Hargreaves: The alchemy of landscape architecture. Thames & Hudson.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHargreaves, George. Hargreaves: The Alchemy of Landscape Architecture. London: Thames & Hudson, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHargreaves, George. Hargreaves: The Alchemy of Landscape Architecture. Thames & Hudson, 2009.
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