American Agricultural Economics Association, ebrary, Inc, & Martin, L. R. (1977). Traditional fields of agricultural economics, 1940s to 1970s. Published by the University of Minnesota Press for the American Agricultural Economics Association.
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Chicago Style (17th ed.) Citation
American Agricultural Economics Association, Inc ebrary, and Lee R. Martin. Traditional Fields of Agricultural Economics, 1940s to 1970s. Minneapolis: Published by the University of Minnesota Press for the American Agricultural Economics Association, 1977.
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MLA引文
American Agricultural Economics Association, et al. Traditional Fields of Agricultural Economics, 1940s to 1970s. Published by the University of Minnesota Press for the American Agricultural Economics Association, 1977.
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警告：這些引文格式不一定是100％准確.