TY  - BOOK
AU  - Beissinger,Janet
AU  - Pless,Vera
ED  - ebrary, Inc.
TI  - The cryptoclub: using mathematics to make and break secret codes workbook 
AV  - QA40.5 .B45 2006eb
U1  - 510 22
PY  - 2006///
CY  - Wellesley, Mass.
PB  - A K Peters
KW  - Mathematics
KW  - Juvenile literature
KW  - Cryptography
KW  - Electronic books
KW  - local
N1  - Includes index; Electronic reproduction; Palo Alto, Calif.; ebrary; 2009; Available via World Wide Web; Access may be limited to ebrary affiliated libraries
UR  - http://site.ebrary.com/lib/strathmore/Doc?id=10158054
ER  -