000			00485nam a2200169Ia 4500
008			220119s9999||||xx |||||||||||||| ||und||
020			_a877781427
040			_cIAB
082			_a372.41 ENG 1980
100			_aEngelmann, Siegfried.
245		0	_aDirect Instruction.
260			_bEducational Technology Publications _c1980
300			_aXII, 111 P. ; 23 CM.
500			_aTHE INSTRUCTIONAL DESIGN LIBRARY ; V.22
504			_aIncludes bibliographical references.
942			_cBOOK
999			_c45339 _d45339