Cita APA (7th ed.)
American Agricultural Economics Association, ebrary, Inc, & Martin, L. R. (1981). Economics of welfare, rural development and natural resources in agriculture 1940s to 1970s. University of Minnesota Press for the American Agricultural Economics Association.
Cita Chicago (17th ed.)
American Agricultural Economics Association, Inc ebrary, i Lee R. Martin. Economics of Welfare, Rural Development and Natural Resources in Agriculture 1940s to 1970s. Minneapolis: University of Minnesota Press for the American Agricultural Economics Association, 1981.
Cita MLA (9th ed.)
American Agricultural Economics Association, et al. Economics of Welfare, Rural Development and Natural Resources in Agriculture 1940s to 1970s. University of Minnesota Press for the American Agricultural Economics Association, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.