Milnor, John Willard  1931- <br/><br/>
Morse theory  based on lecture notes by M. Spivak and R. Wells 
by J. Milnor 
 - 4. print., with corr. and a new preface 
 - VIII, 153 S.  graph. Darst. 
 - Annals of mathematics studies  51 .
 -  51,1969 .
 - Annals of mathematics studies  51,1969 .