Levine, S. R., & Crom, M. A. a. 3. (1993). THE LEADER IN YOU: How to Win Friends, Influence People, and Succeed in a Changing World. New York : Simon & Schuster.
Chicago-viite (17. p.)Levine, Stuart R., ja Michael A. author 300962 Crom. THE LEADER IN YOU: How to Win Friends, Influence People, and Succeed in a Changing World. New York : Simon & Schuster, 1993.
MLA-viite (9. p.)Levine, Stuart R., ja Michael A. author 300962 Crom. THE LEADER IN YOU: How to Win Friends, Influence People, and Succeed in a Changing World. New York : Simon & Schuster, 1993.
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