CLOVER, V. T. Business Research Methods Vernon T Clover Dan Howard L. Balsley. Grid Publishing.
Čikaški stil citiranja (17. izdanje)CLOVER, Vernon T. Business Research Methods Vernon T Clover Dan Howard L. Balsley. Grid Publishing.
MLA način citiranja (8. izdanje)CLOVER, Vernon T. Business Research Methods Vernon T Clover Dan Howard L. Balsley. Grid Publishing.
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