000 00292nam a22001337a 4500
003 SGT
082 _a370
_bC06C
100 _aCHANDENA, S.S.
245 _aCONTEMPORARY SCIENCE TEACHING
260 _aNEW DELHI
_bSURJEET PUB
_c2006
300 _a588
650 _aEDUCATION
942 _2ddc
_cBK
_03
999 _c12141
_d12141