BLANCHARD KEN. (2007). RAVING FANS: REVOLUTIONARY APPROACH TO CUSTOMER SERVICE. HARPER COLLINS PUBLISHERS.
Citace podle Chicago (17th ed.)BLANCHARD KEN. RAVING FANS: REVOLUTIONARY APPROACH TO CUSTOMER SERVICE. NEW DELHI: HARPER COLLINS PUBLISHERS, 2007.
Citace podle MLA (9th ed.)BLANCHARD KEN. RAVING FANS: REVOLUTIONARY APPROACH TO CUSTOMER SERVICE. HARPER COLLINS PUBLISHERS, 2007.
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