TY  - BOOK
AU  - Wallace, Andrews H. 
TI  - Differential topology
U1  - 514.7  23rd ed.
PY  - 1968///
CY  - New York
PB  - W. A. Benjamin
KW  - Differential topology
KW  - Mathematics
KW  - Differential mappings
KW  - Manifolds (Mathematics)
ER  -