TY  - BOOK
AU  - DREW, Clifford J
AU  - LOGAN, Donald R
TI  - Mental Retardation: A Life cycle Approach 
SN  - 067520831903
U1  - 362.3 
PY  - 1984///
CY  - Columbus
PB  - Merrill Publishing Company
N1  - include index
ER  -