TY  - BOOK
AU  - Ball,W.W.Rouse
AU  - Coxeter,H.S.M.
TI  - Mathematical recreations & essays
AV  - QA95 .B355 1974
U1  - 793.7/4 
PY  - 1974///
CY  - Toronto, [Ontario], Buffalo, [New York]
PB  - University of Toronto Press
KW  - Mathematical recreations
KW  - Geometry
KW  - Famous problems
KW  - Cryptography
KW  - Ciphers
KW  - Electronic books
N1  - Includes index
UR  - https://ebookcentral.proquest.com/lib/bcsl-ebooks/detail.action?docID=4669422
ER  -