TY  - BOOK
AU  - 
TI  - Mental retardation in Puerto Rico: knowledge, beliefs, and attitudes
AV  - RC570 .V4413
U1  - 301.15/43/3623097295 
PY  - 1967///]
CY  - San Juan
KW  - Mental Retardation
KW  - Puerto Rico
KW  - Public opinion
KW  - Local
N1  - At head of title: University of Puerto Rico, School of Medicine, Department of Preventive Medicine & Public Health, Basic Sample of Health & Welfare; Cover title; Bibliography: p. 61
ER  -