APA Style

et.al., ., Zablah, A, R. (2004). An evaluation of divergent perspectives on customer relationship management : towards a common understanding of an emerging phenomenon . : www.sciencedirect.com.

MLA Style

et.al., ., Zablah, Alex, R.. "An evaluation of divergent perspectives on customer relationship management : towards a common understanding of an emerging phenomenon". : www.sciencedirect.com, 2004. e-journals.