Iooss, G & Joseph, D.D <br/><br/>
Elementary stability & bifurcation theory 
G. Iooss & D.D. Joseph 
 - New York  Springer  1980 
 - xv  286 
 - Undergraduate texts in mathematics .
<br/><br/><label>ISBN: </label>354090526x 
<br/><br/><label>Dewey Class. No.: </label>6.07  / IOOS