HELLER ROBERT. (1992). BUSINESS OF WINNING: HOW TO SUCCEED IN BUSINESS BY REALLY TRYING. RUPA & COMPANY.
Chicago-čujuhus (17. p.)HELLER ROBERT. BUSINESS OF WINNING: HOW TO SUCCEED IN BUSINESS BY REALLY TRYING. MUMBAI: RUPA & COMPANY, 1992.
MLA-čujuhus (9. p.)HELLER ROBERT. BUSINESS OF WINNING: HOW TO SUCCEED IN BUSINESS BY REALLY TRYING. RUPA & COMPANY, 1992.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.