ISBN 0817683399 books & textbook
Singularities of Differentiable Maps, Volume 1: Classification of Critical Points, Caustics and Wave Fronts (Modern Birkhäuser Classics)
Arnold, V.I. I. Gusein-Zade, S.M. Varchenko, Alexander N.
Birkhäuser /2012-05-24 Paperback / 294 Pages
isbn-10: 0817683399 / isbn-13: 9780817683399
