000 00307nam a22001097a 4500
008 230713b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aChemical take-off
260 _aNew Delhi:
_bChemical Take-Off,
_c1971
310 _aMonthly
942 _cCR
999 _c52350
_d52350