Potter, D. L., & Brockmeyer, G. A. (1999). Softball: Steps to success (2nd ed.). Human Kinetics.
Chicago Style (17. basım) AtıfPotter, Diane L., ve Gretchen A. Brockmeyer. Softball: Steps to Success. 2nd ed. Champaign, Ill: Human Kinetics, 1999.
MLA (9th ed.) AtıfPotter, Diane L., ve Gretchen A. Brockmeyer. Softball: Steps to Success. 2nd ed. Human Kinetics, 1999.
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