Gibbons, G. (2019). Farming (New and updated, Second edition.). Holiday House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGibbons, Gail. Farming. New and updated, Second edition. New York: Holiday House, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGibbons, Gail. Farming. New and updated, Second edition. Holiday House, 2019.
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