TY  - BOOK
T1  - Numeration /
DA  - 1973.
CY  - [Bloomington] :
AU  - LeBlanc, John F.
CN  - QA141
CN  - QA141
PB  - Indiana University Mathematics Education Development Center,
PP  - [Bloomington] :
PY  - 1973.
ID  - 11077
KW  - Numeration
TI  - Numeration /
ER  -