Kumar, V. (2008). Managing Customers for Profit: Strategies to Increase Profits and Build Loyalty. Pearson Education India Pvt. Ltd.
Παραπομπή σε μορφή Chicago (17η εκδ.)Kumar, V. Managing Customers for Profit: Strategies to Increase Profits and Build Loyalty. New Delhi: Pearson Education India Pvt. Ltd, 2008.
Παραπομπή σε μορφή MLA (9th εκδ.)Kumar, V. Managing Customers for Profit: Strategies to Increase Profits and Build Loyalty. Pearson Education India Pvt. Ltd, 2008.
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