TY  - BOOK
AU  - Gay,David
TI  - Explorations in topology: map coloring, surfaces, and knots 
SN  - 9780124166486
AV  - QA611 G39 2014
U1  - 514 22
PY  - 2014///]
CY  - Amsterdam
PB  - Elsevier Academic
KW  - Topología
ER  -