00323nam a2200121Ia 4500008004100000040003000041082001400071100002600085245003600111260002800147300001100175650001500186190302s9999||||xx |||||||||||||| ||und||  aKharagpur College Library  a160bSE55  aPradip Kumar Sengupta  aDemonstration and Logical Truth  bAcademicaKolkatac1968  a272 p.  aPhilosophy