TY  - BOOK
AU  - Hartung,Maurice L.
ED  - Scott, Foresman Publishing
TI  - Seeing through arithmetic: workbook edition 
U1  - 372.7 23
PY  - 1968///
CY  - Illinois
PB  - Scott, Foresman
KW  - Arithmetic
KW  - Study and teaching (Elementary)
ER  -