000 00294nam a2200133 4500
020 _a0199140901
082 _a540 HAR
100 _aHatr,Richard
245 _aBeginning Science Chemistry
260 _aUK
_boxford
_c1985
300 _a121p
650 _achemistry,beginning science
942 _cBK
999 _c1124
_d1124