Colberg, M. R., & Forbush, D. R. (1975). Business economics: Principles and cases (5th.). Richard.
Čikaški stil citiranjaColberg, Marshall R., i Dascomb R. Forbush. Business Economics: Principles and Cases. 5th. Illinois: Richard, 1975.
MLA način citiranjaColberg, Marshall R., i Dascomb R. Forbush. Business Economics: Principles and Cases. 5th. Richard, 1975.
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