TY  - BOOK
AU  - Sellin,Donald F
TI  - Mental retardation: nature, needs and advocacy  
SN  - 0205059899
U1  - 362.3 19
PY  - 1979///
CY  - Boston
PB  - Allyn and Bacon Inc.
KW  - Mental disorders
KW  - Spines
KW  - Disability
N1  - Includes bibliographical references
N2  - Social science
ER  -