TY  - BOOK
AU  - Ashlock, Robert
TI  - Error Pattern in Computation: Using Error Patterns to Improve Instruction
SN  - 0130270938
U1  - 513.071 As32 
PY  - 1972///
CY  - USA
PB  - Prentice-Hall, Inc.
N1  - CoED; Bachelor of Secondary Education major in Mathematics
ER  -