000 00450nam a22001457a 4500
008 230329b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _a661:338.6/.8
_bK4
245 _aChem sources
_c/ Directories Publishing Company
260 _aNew York:
_bDirectories Publishing Company,
_c1965
300 _a447p.
650 _aChemical technology
653 _aChem sources
942 _2udc
_cREF
999 _c16242
_d16242