Hu Sze-Tsen <br/><br/>
Theory of retracts 

 - Detroit  Wayne State University Press        1965 
 - 234p.  cm. 
<br/><br/><label>Standard No.: </label>21948 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B316, K54