Nieuwenhuis-Mark, R. E. (2011). Healthy Aging as Disease? Frontiers Research Foundation.
Čikaški stil citiranjaNieuwenhuis-Mark, Ruth Elaine. Healthy Aging As Disease? Frontiers Research Foundation, 2011.
MLA način citiranjaNieuwenhuis-Mark, Ruth Elaine. Healthy Aging As Disease? Frontiers Research Foundation, 2011.
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