APA Style

Ulrich, D., Ulrich, W. (2010). The Why of Work : How Great Leaders Build Abundant Organizations That Win (E-Book) . America: Mc Graw-Hill.

MLA Style

Ulrich, Dave., Ulrich, Wendy. "The Why of Work : How Great Leaders Build Abundant Organizations That Win (E-Book)". America: Mc Graw-Hill, 2010. Text.