TY  - BOOK
AU  - Francis
TI  - A topological picturebook
SN  - 978-0-387-68120-7
PY  - 2007///
CY  - New York, NY
PB  - Springer 
KW  - Topologia
KW  - Métodos gráficos
KW  - QA611
UR  - https://doi.org/10.1007/978-0-387-68120-7
ER  -