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Dyfyniad Arddull ChicagoHaber, David. Health Promotion and Aging: Practical Applications for Health Professionals. 3rd ed. New York: Springer, 2003.
Dyfyniad MLAHaber, David. Health Promotion and Aging: Practical Applications for Health Professionals. 3rd ed. Springer, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.