TY  - BOOK
AU  - Morrow-Howell,Nancy
AU  - Hinterlong,James
AU  - Sherraden,Michael W.
TI  - Productive aging: concepts and challenges 
SN  - 0801865573 (hard : alk. paper)
PY  - 2001///
CY  - Baltimore, London
PB  - Johns Hopkins University Press
KW  - Older people
KW  - Life span, Productive
N1  - Includes bibliographical references and index
ER  -