TY  - BOOK
AU  - Chinn, William G.,
AU  - Steenrod, Norman Earl
TI  - First concepts of topology: The geometry of mappings of segments, curves, circles, and disks 
T2  - New mathematical library
SN  - 0883856182
AV  - QA611 C49
PY  - 1966///
CY  - Washington, D.C.
PB  - Mathematical Association of American
KW  - Topología
ER  -