WILSON CHARLES. (1999). PROFITABLE CUSTOMERS. KOGAN PAGE.
Chicago-čujuhus (17. p.)WILSON CHARLES. PROFITABLE CUSTOMERS. NEW DELHI: KOGAN PAGE, 1999.
MLA-čujuhus (9. p.)WILSON CHARLES. PROFITABLE CUSTOMERS. KOGAN PAGE, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.