el- imam, m. m. (1965). economic models: Analytical models and the decision making problem. the institute of national planning.
Cytowanie według stylu Chicago (wyd. 17)el- imam, m. m. Economic Models: Analytical Models and the Decision Making Problem. cairo: the institute of national planning, 1965.
Cytowanie według stylu MLA (wyd. 9)el- imam, m. m. Economic Models: Analytical Models and the Decision Making Problem. the institute of national planning, 1965.