000 00331 a2200121 4500
080 _a547.7
_bR 544 C
245 1 _aConformational analysis of heterocyclic compounds
_cby F.R. Riddell
260 _aLondon
_bAcademic Press
_c1980
650 _aHeterocyclic Compounds
100 1 _aRiddell, F.R.
_d
300 _a153 p.
901 _a155580
999 _c68170
_d68170