Zieschang Heiner <br/><br/>
Surfaces and planar discontinuous groups. 
Zieschang Heiner 
 -  1980 
<br/><br/><label>Standard No.: </label>123522 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B316:33, M0