TY  - BOOK
TI  - Number system 
SN  - 0486458067 (pbk.) | 9780486458069 (pbk.)
PY  - 2007///
CY  - Mineola, N.Y.
PB  - Dover Publications
N1  - Originally published: London : Blackie and Son ; New York : Interscience Publishers, 1956. | Includes index
UR  - http://www.loc.gov/catdir/enhancements/fy0704/2006048860-d.html
ER  -