TY  - BOOK
AU  - Stewart Frank Henderson
TI  - Fundamentals of age group systems
T2  - Studies in Anthropology
U1  - Y13-7, L7 
PY  - 1977///
CY  - New York
PB  - Academic         
KW  - Old Persons
N1  - Bibliography P 347-69; Appendixes P 33-45
ER  -