linsel, h., & sack, k. (1965). classification of national econom. the institute of national planning.
Čikaški stil citiranja (17. izdanje)linsel, hermann, i kurt sack. Classification of National Econom. cairo: the institute of national planning, 1965.
MLA način citiranja (9. izdanje)linsel, hermann, i kurt sack. Classification of National Econom. the institute of national planning, 1965.
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