fedorowicz, z. (1964). the system of planning in a socialist economy. the institute of national planning.
Tohutoru Kātū Chicago (17th ed.)fedorowicz, zdzislaw. The System of Planning in a Socialist Economy. cairo: the institute of national planning, 1964.
Tohutoro MLA (9th ed.)fedorowicz, zdzislaw. The System of Planning in a Socialist Economy. the institute of national planning, 1964.
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