000 00307nam a2200109 i 4500
008 910417s1973 sp g spa
080 1 _a109
100 _aWITTGENSTEIN,LUDWIG
245 0 _aTRACTATUS LOGICO-PHILOSOPHICUS
260 _aMADRID.
_b:EDUNSA
_c,1973
997 _dFalta ISBN
_e1