Reihe Springer Texts in Business and EconomicsV. Kumar × Customer Relationship ManagementConcept, Strategy, and ToolsV. KumarSpringer BerlinSoftcover2019 Customer Relationship ManagementConcept, Strategy, and ToolsV. KumarSpringer BerlineBook2018 Customer Relationship ManagementConcept, Strategy, and ToolsV. KumarSpringer BerlinHardcover2018 Customer Relationship ManagementConcept, Strategy, and ToolsV. KumarSpringer BerlinHardcover2012