000			00399nam a2200145 4500
003			OSt
008			220602b |||||||| |||| 00| 0 eng d
082			_a371.3 _bPRO
245			_aProgrammed Instruction
260			_aLondon: _bIndian University Press, _c1969.
300			_a250p.; _c24cm
650		0	_aSchools and their activities; special education
700			_aCalvin, Allen D.
942			_2ddc _cLM
999			_c140358 _d140358