Agricultural History Society. (1927). Agricultural History. University of California Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAgricultural History Society. Agricultural History. Washington: University of California Press, 1927.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAgricultural History Society. Agricultural History. University of California Press, 1927.
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