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Lua i Stíl Chicago (17ú heag.)Gummesson, Evert. Total Relationship Marketing: Marketing Management, Relationship Strategy and CRM Approaches for the Network Economy. Third edition. Amsterdam: Butterworth-Heinemann,c[2008].
Lua MLA (9ú heag.)Gummesson, Evert. Total Relationship Marketing: Marketing Management, Relationship Strategy and CRM Approaches for the Network Economy. Third edition. Butterworth-Heinemann,c[2008].
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