Rado T. <br/><br/>
Continuous transformations in analysis with an introduction to algebraic topology. 
Rado T., Reichelderfer P. 
 - Berlin a.o.  Springer-Verlag  1955 
 - 447 p. 
<br/><br/> Die Grundlehren der Mathematischen Wissenschaften, Bd. LXXV 
<br/><br/><label>Dewey Class. No.: </label>517.518.5