000			00947nam a22002537a 4500
003			OSt
005			20220816092151.0
008			121212b xxu||||| |||| 00| 0 eng d
020			_a0675098165
040			_ckinley
082			_a616.8588 EHL
100			_aEhlers, Walter. H.
245			_aMental Retardation and other developmental disabilities : _ba programmed introduction / _cWalter H. Ehlers ,Jon C. Prothero and John Langone.
250			_a3 rd ed.
260			_aLondon : _bChaeles E. Merrill Publishing Company, _c1982.
300			_axi, 191 p. : _bill. ; _c24 cm.
504			_aIncludes bibliographical references.
650			_a Intellectual disability _vProgrammed instruction.
650			_aDevelopmental disabilities _vProgrammed instruction.
650			_aChildren with mental disabilities _xServices for _vProgrammed instruction. _zUnited States
700			_aProthero, Jon. C.
700			_aJohn Langone.
942			_2ddc _cBK
999			_c3502 _d3502