<p><a href=“http://www.archive.org/details/coursepuremath00hardrich[/url]”>A course of pure mathematics : Hardy, G. H. (Godfrey Harold), 1877-1947 : Free Download, Borrow, and Streaming : Internet Archive;
<p><a href=“http://en.wikipedia.org/wiki/Course_of_Pure_Mathematics[/url]”>http://en.wikipedia.org/wiki/Course_of_Pure_Mathematics</a></p>