SCOTT DRU. (1991). CUSTOMER SATISFACTION: THE OTHER HALF OF YOUR JOB. CRISP PUBLICATION.
Chicago-čujuhus (17. p.)SCOTT DRU. CUSTOMER SATISFACTION: THE OTHER HALF OF YOUR JOB. CALIFORNIA: CRISP PUBLICATION, 1991.
MLA-čujuhus (9. p.)SCOTT DRU. CUSTOMER SATISFACTION: THE OTHER HALF OF YOUR JOB. CRISP PUBLICATION, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.