APA Style

Sugerman, J., Scullard, M. (2011). The 8 Dimensions of Leadership: DiSC® Strategies for Becoming a Better Leader (E-Book) . California: Berrett-Koehler Publishers, Inc..

MLA Style

Sugerman, Jeffrey., Scullard, Mark. "The 8 Dimensions of Leadership: DiSC® Strategies for Becoming a Better Leader (E-Book)". California: Berrett-Koehler Publishers, Inc., 2011. Text.