TY  - BOOK
AU  - Magnus,Wilhelm
TI  - Noneuclidean tesselations and their groups
SN  - 0124654509
U1  - 513.8 
PY  - 1974///
CY  - New York
PB  - Academic Press
KW  - Tessellations (Mathematics)
KW  - Geometry, Non-Euclidean
KW  - Discontinuous groups
N1  - Includes index; Bibliography: p. 199-204
ER  -