TY  - BOOK
AU  - Zigler,Edward
AU  - Hodapp,Robert M.
TI  - Understanding mental retardation
SN  - 0521318785 (pbk.)
AV  - RC570RC570 .Z54 1986.Z54
U1  - 616.85/88 19
PY  - 1986///
CY  - Cambridge, New York
PB  - Cambridge University Press
KW  - Mental retardation
KW  - Mental Retardation
N1  - Includes indexes; Bibliography: p. 248-279
UR  - http://www.loc.gov/catdir/description/cam023/85031444.html
ER  -