YMCA of the USA & Hanlon, T. W. (1995). Fit for two: The official YMCA prenatal exercise guide. Human Kinetics.
Chicago Style (17. basım) AtıfYMCA of the USA ve Thomas W. Hanlon. Fit for Two: The Official YMCA Prenatal Exercise Guide. Champaign, Ill: Human Kinetics, 1995.
MLA (9th ed.) AtıfYMCA of the USA ve Thomas W. Hanlon. Fit for Two: The Official YMCA Prenatal Exercise Guide. Human Kinetics, 1995.
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