TY  - BOOK
AU  - Hirsch,Morris W
TI  - Differential topology
T2  - Graduate texts in mathematics
SN  - 0-387-90148-5
U1  - 514/.7 
PY  - 1976///
CY  - New York
PB  - Springer
KW  - Differential topology
KW  - Topología diferencial
N1  - Includes index; Bibliography: p. 209-212
ER  -