Blackett, Donald W. <br/><br/>
Elementary Topology: a Combinatorial and Algebraic Approach 

 - New York :   Academic press,   1968. 
 - ix, 224 p. :   il., gráfs. ;   24 cm. 
<br/><br/> Bibligrafía, p. 219 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TOPOLOGIA
<br/><br/><label>Universal Decimal Class. No.: </label>513.83