TY  - BOOK
AU  - Washington,Allyn J.
TI  - Mathematics, a developmental approach
SN  - 080539527X
AV  - QA39.2 .W375 1979
PY  - 1979///
CY  - Menlo Park, Calif.
PB  - Benjamin/Cummings Pub. Co.
N1  - Includes index
ER  -