Kr५mer, Ralf. <br/><br/>
Tool and Object [electronic resource]  A History and Philosophy of Category Theory 
by Ralf Kr५mer 
 - Basel  Birkh user Verlag AG  2007 
<br/><br/> http://dx.doi.org/10.1007/978-3-7643-7524-9 
<br/><br/><label>ISBN: </label>9783764375249 
<br/><br/><label>Dewey Class. No.: </label>512.09  / (e-book)