000 00341nam a22001097a 4500
008 230630b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aChemical and engineering news
260 _aWashington 6 D.C:
_bAmerican Chemical Society,
_c1946
310 _aSemi-Monthly
942 _cCR
999 _c48425
_d48425