Russell, Bertrand, 1872-1970
Introduction to Mathematical Philosophy [recurso electrónico] / Bertrand Russell - Project Gutenberg, 2012 - Project Gutenberg 41654 .
Public domain in the USA.
Text
Introduction to Mathematical Philosophy [recurso electrónico] / Bertrand Russell - Project Gutenberg, 2012 - Project Gutenberg 41654 .
Public domain in the USA.
Text