TY  - BOOK
AU  - Ifrah, Georges.
TI  - The Universal history of numbers
SN  - 1-86046-738-5
AV  - MAIN QA 141.2 
CY  - London
KW  - Number concept -- History
KW  - Numeration -- History
KW  - Numerals -- History
N1  - Includes bibliographical references and index
ER  -