000 00345nam a2200145Ia 4500
008 150502s9999||||xx |||||||||||||| ||und||
082 _aGUP
100 _a"Gupta, Naresh, Kumar"
245 _aRescarch In Teaching Science
250 _a2008
260 _b"A.P.H.Publishing Corp,"
300 _aGUP
600 _aengineering
942 _2ddc
_cBK
999 _c9883
_d9883