TY  - BOOK
AU  - Francis,George K
TI  - Topological picturebook
SN  - 0-387-96426-6
U1  - 514 
PY  - 1987///
CY  - New York
PB  - Springer-Verlag
KW  - Mathematics
KW  - Sphere eversions
KW  - Topology- Graphic methods
N1  - Includes bibliographical references and index
ER  -