000 003040000a22001210004500
245 _aDiscovery, invention, research : through the morphological approach
100 _aZwicky, Fritz
260 _bMacmillan
_c1969
300 _aix, 276p. : ill.
080 _a608
_bZ8
041 _aEN
942 _cBK
999 _c113837
_d113837