(2012). Perennial vegetable gardening: With Eric Toensmeier (Wide screen.). Chelsea Green Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerennial Vegetable Gardening: With Eric Toensmeier. Wide screen. White River Junction, Vermont: Chelsea Green Publishing, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPerennial Vegetable Gardening: With Eric Toensmeier. Wide screen. Chelsea Green Publishing, 2012.
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