000 00312nam a2200133Ia 4500
008 210901s1972 xx 000 0 eng d
082 _a509 HAR
100 _aHariharan
245 2 _aA concise histroy of science
260 _aNew Delhi
_bMehta Bros
_c1972
300 _a80
650 _aScience
942 _2ddc
_cBK
999 _c9050
_d9050