000 00317nam a2200133Ia 4500
008 160316s1980 xxu||||| |||| 00| 0 eng d
020 _a
100 _aYule,William
245 _aBehaviour Modification For The Mentally Handicapped
250 _a
260 _aLONDON
_bCROOM HELM
_c1980
300 _a298
700 _a
_a
999 _c3781
_d3781