TY  - BOOK
AU  - Dunn H L
ED  - US. Health Education and Welfare, Dept.of
TI  - Health and demography
U1  - 312.0973 
PY  - 1956///
CY  - Washington
PB  - Govt.printing
KW  - Demography
KW  - Health
KW  - United States
ER  -