000			00462nam a2200157 a 4500
005			20240602100408.0
008			090528s19uu xx 00 eng d
010			_a63-21734
245	0	0	_aProgramed learning : _ba critical evaluation / _c[edited by] J.L. Hughes.
260	0		_aLondon : _bPitman, _c[n.d.].
300			_a238 p. : _bill. ; _c22 cm.
504			_aBibliography: p. 126.
650		4	_aProgrammed instruction.
700	1	0	_aHughes, J. L.
942			_2ddc
999			_c24873 _d24873