COOPER ROBERT. (1997). EXECUTIVE EQ. ORION BUSINESS BOOKS.
Chicago-čujuhus (17. p.)COOPER ROBERT. EXECUTIVE EQ. U K: ORION BUSINESS BOOKS, 1997.
MLA-čujuhus (9. p.)COOPER ROBERT. EXECUTIVE EQ. ORION BUSINESS BOOKS, 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.