GRIFFIN JILL. (2002). CUSTOMER LOYALTY: HOW TO EARN IT, HOW TO KEEP IT. JOSSEY-BASS PUBLICATIONS.
Čikaški stil citiranja (17. izdanje)GRIFFIN JILL. CUSTOMER LOYALTY: HOW TO EARN IT, HOW TO KEEP IT. SAN FRANCISCO: JOSSEY-BASS PUBLICATIONS, 2002.
MLA način citiranja (9. izdanje)GRIFFIN JILL. CUSTOMER LOYALTY: HOW TO EARN IT, HOW TO KEEP IT. JOSSEY-BASS PUBLICATIONS, 2002.
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