Richards, H. (2025). The permaculture garden: A practical approach to year-round harvests (First American edition.). DK Publishing, a division of Penguin Random House LLC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRichards, Huw. The Permaculture Garden: A Practical Approach to Year-round Harvests. First American edition. New York, NY: DK Publishing, a division of Penguin Random House LLC, 2025.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRichards, Huw. The Permaculture Garden: A Practical Approach to Year-round Harvests. First American edition. DK Publishing, a division of Penguin Random House LLC, 2025.
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