Ferraro, K. F. (1997). Gerontology: Perspectives and issues. New York: Springer.
Trích dẫn kiểu ChicagoFerraro, Kenneth F. Gerontology: Perspectives and Issues. New York: Springer, 1997.
MLA citiranjeFerraro, Kenneth F. Gerontology: Perspectives and Issues. New York: Springer, 1997.
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