Wittgenstein, Ludwig, 1889-1951 Prototractatus : an early version of Tractatus logico-philosophicus / by Ludwig Wittgenstein ; edited by B. F. McGuinness, T. Nyberg, G. H. von Wrightwith a translation by D. F. Pears, B. f. McGuinnessan hitorica introduction by G. H. von Wright

Prototractatus : an early version of Tractatus logico-philosophicus / by Ludwig Wittgenstein ; edited by B. F. McGuinness, T. Nyberg, G. H. von Wrightwith a translation by D. F. Pears, B. f. McGuinnessan hitorica introduction by G. H. von Wright . - 1st ed . - xxa-fim yyc-fim, 1971