000 00285nam a2200097 4500
245 _aInnovations in science and technology education
_cedited by David Layton
710 _aLayton, David
260 _aNew Delhi
_bSterling Publishers
_cc1987
300 _a188p.; 22cm.
082 _a370.118
_bLAY
999 _c63516
_d63516