TY  - BOOK
AU  - 
AU  - Perez,Manuel A.
TI  - Health and socio-economic studies in Puerto Rico
PY  - 1937///-1940
CY  - San Juan, P.R.
PB  - [s.n.]
KW  - Hygiene, Public
KW  - Puerto Rico
KW  - Local
KW  - Sanitation
KW  - Social conditions
KW  - Economic conditions
N1  - Articles reprinted from the Puerto Rico Journal of Public Health and Tropical Medicine; Includes bibliographies
ER  -