WEIHRICH, H. (1985). Management Excellence Productivity Througt Mbo Heinz Weihrich. McGraw-Hill.
Čikaški stil citiranja (17. izdanje)WEIHRICH, Heinz. Management Excellence Productivity Througt Mbo Heinz Weihrich. McGraw-Hill, 1985.
MLA način citiranja (8. izdanje)WEIHRICH, Heinz. Management Excellence Productivity Througt Mbo Heinz Weihrich. McGraw-Hill, 1985.
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