Mechanic, D. (1999). The changing elderly population and future health care needs. Springer-Verlag.
Čikaški stil citiranjaMechanic, David. The Changing Elderly Population and Future Health Care Needs. Springer-Verlag, 1999.
MLA način citiranjaMechanic, David. The Changing Elderly Population and Future Health Care Needs. Springer-Verlag, 1999.
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