TY  - BOOK
AU  - Crossley, Martin D.
TI  - Essential topology 
T2  - Springer Undergraduate Mathematics Series
SN  - 978-81-8128-194-2
PY  - 2008///
CY  -  New Delhi
PB  - Springer
KW  - Essential TopologyEuler NumberHomeomorphismsHomotopyTopology
ER  -