TY  - GEN
AU  - Clausen, John A.
TI  - The Life course: a sociological perspective 
SN  - 0135359074
U1  - 305 CLA 
PY  - 1986///
CY  - Englewood Cliffs : 
PB  - Prentice hall
KW  - Life cycle
KW  - human
KW  - Social aspects
N1  - Includes index
ER  -