000			00489nam a2200169Ia 4500
008			241206s9999||||xx |||||||||||||| ||und||
020			_a9780787986834 _c219.8
040			_beng _cSSK Library _erda
082			_a658.312402854678/CLA
100			_a Ruth Colvin Clark, Richard E. Mayer
245		0	_aE-Learning And The Science Of Instruction
250			_a2nd ed
260			_b Pfeiffer _c©2008
942			_2Dewey Decimal Classification _cBOOK _nNo
999			_c15454 _d15454
003			OSt
005			20241206223227.0