APA Style

Levine, S, R., Crom, M, A. (1993). The leader in you : how to win friends, influence people, and succeed in a changing world . New York: Pocket Books.

MLA Style

Levine, Stuart, R.., Crom, Michael, A.. "The leader in you : how to win friends, influence people, and succeed in a changing world". New York: Pocket Books, 1993. Books.