000 00313nam a2200133Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aRoy Mcweeny
245 0 _aValence
250 _a3rd Ed.
260 _bThe English Language Book Society
_c1952
300 _a434
650 _aChemistry-Chemistry
942 _cBK
999 _c2585
_d2585