TY  - BOOK
AU  - Wallace,Andrew H.
TI  - Differential topology: first steps 
T2  - Mathematics monograph series
SN  - 0805394850
AV  - QA612 .W35
U1  - 514/.72 19
PY  - 1968///
CY  - New York
PB  - W. A. Benjamin
KW  - Differential topology
N1  - Bibliography: p. 127-128
ER  -