Não informado. (2001). Annual report of the United States Department of Agriculture. U.S. Department of Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report of the United States Department of Agriculture. Washington: U.S. Department of Agriculture, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report of the United States Department of Agriculture. U.S. Department of Agriculture, 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.