TY  - BOOK
AU  - Flegg,Graham
ED  - Open University
TI  - History of mathematics
SN  - 0335050042
PY  - 1974///
CY  - Milton Keynes
PB  - The Open University Press
KW  - Mathematics
KW  - History
KW  - Numeration
N1  - Unit C3. Newton and Leibniz - Unit C4. The Calculus in the eighteenth century I : foundations - Unit N1. Counting I : primitive and more developed counting systems - Unit N2. Counting II : decimal number words, tallies and knots - Unit N3. Written numbers - Unit N4. Written fractions
ER  -