000 00291nam a22001097a 4500
100 _aRussel, Betrand
245 _aOur knowledge of the external world /
_cby Betrand Russel
260 _aLondon :
_bGeorge allen and unwind ltd.
_c1914.
300 _a251p. :
650 _aEnglish
942 _cBK
999 _c702302
_d702302