SINGH P N. (1993). SUCCESS UNLIMITED: HOW TO REACH THE TOP IN THE CORPORATE WORLD. SUCHANDRA PUBLICATIONS.
Čikaški stil citiranja (17. izdanje)SINGH P N. SUCCESS UNLIMITED: HOW TO REACH THE TOP IN THE CORPORATE WORLD. MUMBAI: SUCHANDRA PUBLICATIONS, 1993.
MLA način citiranja (9. izdanje)SINGH P N. SUCCESS UNLIMITED: HOW TO REACH THE TOP IN THE CORPORATE WORLD. SUCHANDRA PUBLICATIONS, 1993.
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