TY  - BOOK
AU  - Drew,Clifford J.
AU  - Logan,Donald R.jtauthor
AU  - Hardman,Michael L.jtauthor
TI  - Mental retardation: a life cycle approach 
SN  - 0675208319
PY  - 1988///
CY  - Toronto
PB  - Merrill Publishing Co.
KW  - Mental retardation
KW  - People with mental disabilities
KW  - Development disabilities
N1  - Includes bibliographical references and indexes; Open access
ER  -