TY  - BOOK
AU  - Ifrah, Georges
AU  - Bellos, David 
TI  - The universal history of numbers II :  : the modern number system / 
U1  - 513.1  22
PY  - 2005///.
CY  - New Delhi : 
PB  - Penguin Books
KW  - Ifrah, Georges
N1  - Includes bibliography and index
ER  -