HELLER ROBERT. (1992). BUSINESS OF WINNING: HOW TO SUCCEED IN BUSINESS BY REALLY TRYING. RUPA & COMPANY.
Citazione stile Chigago Style (17a edizione)HELLER ROBERT. BUSINESS OF WINNING: HOW TO SUCCEED IN BUSINESS BY REALLY TRYING. MUMBAI: RUPA & COMPANY, 1992.
Citatione MLA (9a ed.)HELLER ROBERT. BUSINESS OF WINNING: HOW TO SUCCEED IN BUSINESS BY REALLY TRYING. RUPA & COMPANY, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.