TY  - BOOK
AU  - Maas, Henry S.
AU  - Kuypers, Joseph A.
TI  - From thirty to seventy
SN  - 875892345
U1  - 305.24 
PY  - 1977///
CY  - San Francisco
PB  - Jossy Bass
KW  - Family life
KW  - Aging
N1  - A Forty-year longitudinal study of adult life styles and personality
ER  -