Bell, A. H., & Smith, D. M. (2003). Motivating yourself for achievement. Prentice Hall.
Chicago Style aipamenaBell, Arthur H., and Dayle M. Smith. Motivating Yourself for Achievement. Upper Saddle River, N.J: Prentice Hall, 2003.
MLA aipamenaBell, Arthur H., and Dayle M. Smith. Motivating Yourself for Achievement. Prentice Hall, 2003.
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