000 00390nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
020 _a335042384
084 _a547.21 O1
245 0 _a"Aromaticity Unit 17, 18 &19"
250 _a\\197700ENGGPSX
260 _aO U P
260 _b1977
260 _cLondon
300 _a51p
500 _aincludes index and biblioraphy
942 _cBK
999 _c39334
_d39334