000 00325nam a22001457a 4500
003 OSt
020 _a0070792801
082 _a503.21
_bHIL
100 _aHILL, MC GRAW
245 _aMCGRAW-HILL ENCYCLOPEDIA SCIENCE & TECHNOLOGY
250 _aV
260 _aNEW DELHI
_bMC GRAW HILL
_c1982
300 _a861
942 _2ddc
_cD
999 _c80508
_d80508