TY  - BOOK
AU  - Francis, George K.
TI  - A topological picturebook
SN  - 3540964266
U1  - 514 
PY  - 1987///
CY  - New York: 
PB  - Springer Verlag, 
KW  - Descriptive topology
KW  - Math
KW  - Methods and media
KW  - Picturebook
ER  -