APA Style

Kumar, V., Reinartz, W, J. (2006). Customer Relationship Management; A Databased Approach (1). Hoboken: John Wiley & Sons, Inc..

MLA Style

Kumar, V.., Reinartz, Werner, J.. "Customer Relationship Management; A Databased Approach". 1 Hoboken: John Wiley & Sons, Inc., 2006. Text.