Boggess, W. G., & Heady, E. O. (1980). A separable programming analysis of U.S. agricultural export, price and income, and soil conservation policies in 1985. Ames: Center for Agricultural and Rural Development. Iowa State University.
Παραπομπή Chicago StyleBoggess, William G., and Earl O. Heady. A Separable Programming Analysis of U.S. Agricultural Export, Price and Income, and Soil Conservation Policies in 1985. Ames: Center for Agricultural and Rural Development. Iowa State University, 1980.
Παραπομπή MLABoggess, William G., and Earl O. Heady. A Separable Programming Analysis of U.S. Agricultural Export, Price and Income, and Soil Conservation Policies in 1985. Ames: Center for Agricultural and Rural Development. Iowa State University, 1980.