TY  - BOOK
AU  - Ball,W.W.Rouse,1850-1925
TI  - Mathematical Recreations and Essays
AV  - QA 
PY  - 2008///
PB  - Project Gutenberg
KW  - Mathematical recreations
KW  - Geometry -- Famous problems
KW  - University of Cambridge -- History
KW  - Numbers, Prime
KW  - Cryptography
KW  - Space and time
KW  - Matter
KW  - Mathematics -- Study and teaching -- England -- Cambridge
KW  - Magic squares
KW  - Ciphers
KW  - Astrology
N1  - Project Gutenberg; Freely available; Electronic text
UR  - http://www.gutenberg.org/etext/26839
UR  - http://www.gutenberg.org/license
ER  -