TY  - BOOK
AU  - La Fontaine J S
TI  - Sex and age as principles of social differentiation
SN  - 0124330509
U1  - 305.3 
PY  - 1978///
CY  - London
PB  - Academic
KW  - Age groups
KW  - Differentiation (Sociology)
KW  - Sex role
KW  - Social groups
ER  -