TY  - BOOK
AU  - Fendel,Daniel M.
TI  - Understanding the structure of elementary school mathematics
SN  - 020508821X
AV  - QA107QA107 .F46 1987.F46
U1  - 372.7 19
PY  - 1987///
CY  - Boston
PB  - Allyn and Bacon
KW  - Mathematics
N1  - Includes index
ER  -