TY  - BOOK
AU  - Morton,Robert Lee
TI  - Modern arithmetic through discovery
PY  - 1963///
CY  - Morristown, N.J.
PB  - Silver Burdett
KW  - Arithmetic
N1  - Library has v. 3-6
UR  - http://www.archive.org/details/modernarithmetic04mort
UR  - http://www.openlibrary.org/books/OL24620882M
ER  -