000 00574nam a2200241Ia 4500
003 OSt
005 20220912152500.0
006 a|||||r|||| 00| 0
007 ta
008 220909b |||||||| |||| 00| 0 eng d
024 _a45084
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aE:21un1,N66, N3
100 _aSen K D Ed.
245 0 _aChemical hardnes
260 _c1993
300 _ap.
_ccm.
650 _aChemical combination
942 _hE:21un1,N66, N3
_cTEXL
_2CC
999 _c87146
_d87146