BITTEL, L. R. (1991). Right on Time!: The complete guide for time-pressured managers. McGraw-Hill Inc.
Čikaški stil citiranja (17. izdanje)BITTEL, Lester R. Right on Time!: The Complete Guide for Time-pressured Managers. McGraw-Hill Inc, 1991.
MLA način citiranja (8. izdanje)BITTEL, Lester R. Right on Time!: The Complete Guide for Time-pressured Managers. McGraw-Hill Inc, 1991.
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