000			00335nam a22001337a 4500
020			_a9780470900024
082			_a658.3124040285 HOR
100			_aHorton, William K.
245			_aE-learning by design
260			_aUSA _bPfeiffer _c2012
300			_axx, 615 p. : _e25 cm
650			_aComputer-assisted instruction--Design
942			_cBK
999			_c12849 _d12849