000 00372nam a2200145Ia 4500
008 180710s9999 xx 000 0 und d
020 _a168768
082 _a153.2
_bSCH
100 _aSCHON, Donald A.
245 _aInvention and the evolution of ideas
260 _aLondon
_bSocial science paperbacks
_c1963
300 _axiii, 208 p.
650 _aConcepts
942 _cR
999 _c68132
_d68132