Orr, S. (2011). Tomorrow's garden: Design and inspiration for a new age of sustainable gardening. Rodale.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOrr, Stephen. Tomorrow's Garden: Design and Inspiration for a New Age of Sustainable Gardening. New York: Rodale, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOrr, Stephen. Tomorrow's Garden: Design and Inspiration for a New Age of Sustainable Gardening. Rodale, 2011.
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