TY  - BOOK
AU  - Masland, Richard L 
AU  - Sarason B, Seymour 
AU  - Gladwin, Thomas 
TI  - Mental subnormality : : biological, psychological, and cultural factors 
U1  - 616.8588 
PY  - 1958///
CY  - New York
PB  - Basic Book, Inc, 
KW  - Mental Retardation
ER  -