Cita APA (7th ed.)

YMCA of the USA & Hanlon, T. W. (1995). Fit for two: The official YMCA prenatal exercise guide. Human Kinetics.

Cita Chicago (17th ed.)

YMCA of the USA i Thomas W. Hanlon. Fit for Two: The Official YMCA Prenatal Exercise Guide. Champaign, Ill: Human Kinetics, 1995.

Cita MLA (9th ed.)

YMCA of the USA i Thomas W. Hanlon. Fit for Two: The Official YMCA Prenatal Exercise Guide. Human Kinetics, 1995.