horn, k. h. (1967). structural changes and productivity. the institute of national planning.
Čikaški stil citiranja (17. izdanje)horn, karl heinz. Structural Changes and Productivity. cairo: the institute of national planning, 1967.
MLA način citiranja (9. izdanje)horn, karl heinz. Structural Changes and Productivity. the institute of national planning, 1967.
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