TY  - BOOK
AU  - Keedy,Mervin Laverne
AU  - Bittinger,Marvin L.
TI  - Developmental mathematics
AV  - QA107 K432D 1989
PY  - 1989///
CY  - Reading, Mass.
PB  - Addison-Wesley Pub.Co.
KW  - ARITHMETIC
KW  - ALGEBRA
ER  -