00658nam a2200193Ia 4500001000700000003000500007005001700012008004100029010001700070035002000087040001400107100003600121245013600157260003600293300003200329500002200361650005100383740003000434109235BIBL20160527182722.0750701s1964    xx            000 0 eng u  anuc67010883   a(OCoLC)01422847  cORLdm.c.10aWittgenstein, Ludwigwcn2Local14aThe Blue and Brown books.bPreliminary studies for the "Philosophical investigations"cgenerally known as the Blue and Brown books.0 aNew YorkbHarperc[1964, c1958]  axiv, 185 p.billus.c22 cm.  a"Second edition." 0aPhilosophyxStudies and investigations.2Local40aThe Blue and Brown books.