000 00329cam a2200133 i 4500
020 _a0582442532
082 0 0 _a547.59 YOU
100 1 _aYoung, Douglas W.
245 1 0 _aHeterocyclic chemistry /
260 _aLondon ;
_aNew York :
_bLongman,
_c1975.
300 _a133 p. :
_bill. ;
650 0 _aHeterocyclic chemistry.
942 _cREF
999 _c3516
_d3516