TY  - BOOK
AU  - Haehl,Martha
TI  - Preparing for algebra by building the concepts
SN  - 0136088783
U1  - 513.12 
PY  - 1998///
CY  - Upper Saddle River, New Jersey
PB  - Prentice Hall
KW  - Mathematics
N1  - Includes index; 500-599; 513
ER  -