BLANCHARD KEN. (2007). RAVING FANS: REVOLUTIONARY APPROACH TO CUSTOMER SERVICE. HARPER COLLINS PUBLISHERS.
Chicago-čujuhus (17. p.)BLANCHARD KEN. RAVING FANS: REVOLUTIONARY APPROACH TO CUSTOMER SERVICE. NEW DELHI: HARPER COLLINS PUBLISHERS, 2007.
MLA-čujuhus (9. p.)BLANCHARD KEN. RAVING FANS: REVOLUTIONARY APPROACH TO CUSTOMER SERVICE. HARPER COLLINS PUBLISHERS, 2007.
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