000 00438nam a2200169 4500
020 _a
_c70
082 _a547.59 SIM
100 _aSIMPSON J C E
245 _aCONDENSED PYRIDAZINE AND PYRAZINE RINGS
_hENGLISH
250 _a
260 _aLONDON
_bINTERSCIENCE
_c1953
300 _a394
_fHB
500 _a
590 _d
650 _aCONDENSED PYRIDAZINE AND PYRAZINE RINGS
942 _cREF
999 _c272758
_d272758