000 00290nam a2200133Ia 4500
008 160316s1961 xxu||||| |||| 00| 0 eng d
020 _a
100 _aCoulson, C A
245 _aValence
250 _a2nd
260 _aLondon
_bOxford University Press
_c1961
300 _a406
700 _a
_a
999 _c8798
_d8798