TY  - BOOK
AU  - Haehl, Martha
TI  - Preparing for algebra by building the concepts
SN  - 0136088783
AV  - QA135.5 H32.1998
PY  - 1998///
CY  - Upper Sadle River, N.J.
PB  - : Prentice Hall
N1  - Incluye índice
ER  -