Brocker, Theodor. <br/><br/>
Differentiable germs and catastrophes / 
Th. Brocker & L. Lander ; [translated by L. Lander]. 
 - Cambridge [Eng.] ;  New York :  Cambridge University Press,  c1975. 
 - vi, 179 p. :  ill. ; 
 - London Mathematical Society lecture note series ; 17 .
<br/><br/> "A small number of copies of the German text were printed ... under the title: Der Regensburger Trichter, Band 3, Differenzierbare Abbildungen."  Includes index. 
<br/><br/><label>ISBN: </label>0521206812 
<br/><br/><label>Subjects--Index Terms: </label>Catastrophes 
<br/><br/><label>Universal Decimal Class. No.: </label>512.76  / BRO