Paul,Justin. (2019). Business environment: Text and cases (4th.). McGraw Hill.
Čikaški stil citiranja (17. izdanje)Paul,Justin. Business Environment: Text and Cases. 4th. Chennai: McGraw Hill, 2019.
MLA način citiranja (9. izdanje)Paul,Justin. Business Environment: Text and Cases. 4th. McGraw Hill, 2019.
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