000 00255nam a2200109Ia 4500
020 _a0-08-0214494-0
942 _cBK
245 _aConcept formation by Neil Bolton
260 _aPergamon Press, Oxford
_c1977
082 _a153.1 Bol
300 _aviii,163p figs.
999 _c1575
_d1575