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Evolution of land cover definitions and survey for the Economics and Statistics Service
MLA
May, George, and United States Department of Agriculture. Economics and Statistics Service. Statistical Research Division. Evolution of land cover definitions and survey for the Economics and Statistics Service. USDA, ESS, Statistics Research Division, 1981.
APA
May, George, and United States Department of Agriculture. Economics and Statistics Service. Statistical Research Division. (1981). Evolution of land cover definitions and survey for the Economics and Statistics Service. USDA, ESS, Statistics Research Division.
Chicago
May, George., and United States Department of Agriculture. Economics and Statistics Service. Statistical Research Division. Evolution of land cover definitions and survey for the Economics and Statistics Service. USDA, ESS, Statistics Research Division, 1981.