TY  - BOOK
AU  - Singer,I M
AU  - Thorpe,J A
TI  - Lecture notes on elementry topology and geometry (Undergraduate texts in mathematics)
SN  - 9780387902029
U1  - 514 
PY  - 1967///
CY  - Newyork
PB  - Springer
KW  - Mathematics
ER  -