A System of Logic :
Mill, John Stuart, 1806-1873
A System of Logic : Ratiocinative and Inductive : 7th Edition, Vol. I [electronic resource] / John Stuart Mill - Project Gutenberg, 2011 - Project Gutenberg 35420 .
Public domain in the USA.
Electronic text
A System of Logic : Ratiocinative and Inductive : 7th Edition, Vol. I [electronic resource] / John Stuart Mill - Project Gutenberg, 2011 - Project Gutenberg 35420 .
Public domain in the USA.
Electronic text