Stable mappings and their singularities [by] M. Golubitsky [and] V. Guillemin. Golubitsky, Martin, 1945- Guillemin, Victor, 1937- joint author. Differentiable mappings. Singularities (Mathematics) Manifolds (Mathematics) QA613.64 .G64 515.26 GOS Bibliography: p. 200-203. New York : Springer-Verlag, c1973. c1973. 1974 Text x, 209 p. : eng Graduate texts in mathematics, 14