TY  - BOOK
AU  - Payne,James S.
AU  - Patton,James R.
TI  - Mental retardation
SN  - 0675080274
AV  - RC570 .M385
U1  - 362.3 19
PY  - 1981///
CY  - Columbus, Ohio
PB  - Merrill
KW  - Mental retardation
N1  - Includes indexes; Bibliography: p. [427]-452
ER  -