TY  - BOOK
AU  - Perez,Manuel A.
ED  - United States
TI  - Health and socio-economic studies in Puerto Rico: V. Second survey of the Lafayette area
PY  - 1940///?]
CY  - [San Juan, P.R.?
KW  - Public health
KW  - Puerto Rico
KW  - Local
KW  - Sanitation
KW  - Economic conditions
N1  - Caption title
ER  -