TY  - BOOK
AU  - Keedy,Mervin L.
AU  - Bittinger,Marvin L.
AU  - Beecher,Judith A.
TI  - Developmental mathematics
SN  - 0201537702
AV  - QA107 .K435 1993
U1  - 513/.14 20
PY  - 1993///
CY  - Reading, Mass.
PB  - Addison-Wesley Pub. Co.
KW  - Arithmetic
KW  - Algebra
N1  - Includes index
ER  -