Davis, K. Business And Its Environmental Keith Davis Dan Robert L. Blomstrom. McGraw-Hill.
Čikaški stil citiranja (17. izdanje)Davis, Keith. Business And Its Environmental Keith Davis Dan Robert L. Blomstrom. McGraw-Hill.
MLA način citiranja (8. izdanje)Davis, Keith. Business And Its Environmental Keith Davis Dan Robert L. Blomstrom. McGraw-Hill.
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