000 00389nam a2200157Ia 4500
008 230917s9999||||xx |||||||||||||| ||und||
040 _e137374
_aMAIN
041 _aEnglish
082 _a539.12 C249V
100 _aCartmedli, E.
245 0 _aValency and molecular structure
250 _a4th ed.
260 _aLondon
_bButterworths & Co Ltd
_c1977
300 _a341p p.
942 _cBK
999 _c200127
_d200127