TY  - BOOK
AU  - Baltes P B
AU  - Nesselroade J R
TI  - Longitudinal research in the study of behavior and development
U1  - 136.5 
PY  - 1979///
CY  - New York
PB  - Academic Press
KW  - Developmental psychology
KW  - Differential psychology
KW  - Psychology
ER  -