TY  - BOOK
AU  - Cook, Marcy
TI  - Arithmetornos D: Ecuaciones 
SN  - 1-56107-647-3
AV  - TR(GS 513.146 COO771 1995
PY  - 1995///
CY  - Mountain View, CA
PB  - Creative Pub
KW  - Arithmetic -- Problems, exercises, etc
KW  - Study and teaching
KW  - Spanish language -- Reading materials
ER  -