Gauld, D.B <br/><br/>
Differential topology 
D.B. Gauld 
 - New York  Marcel Dekker  1982 
 - iv  241 
 - Pure & applied mathematics .
<br/><br/><label>ISBN: </label>0824717090 
<br/><br/><label>Dewey Class. No.: </label>7.04  / GAUL