Lefschetz, Solomon, 1884-1972.  Lefschetz, Solomon, 1884-1972. <br/><br/>
Introduction to topology. 

 - Princeton :  Princeton University Press,  1949. 
 - Princeton mathematical series ;  11 .
 - Princeton. Mathematical series ;  Princeton. Mathematical series ;  11. .
<br/><br/>Bibliography: p. 208-210. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Topology.