Cook, Marcy
Arithmetornos C : ecuaciones /
Marcy Cook.
- Mountain View, CA : Creative Pub, 1995.
- 24p.(pt.1);24p.(pt.2);ill.
- Mathland .
1-56107-646-5
Arithmetic -- Problems, exercises, etc. -- study and teaching
Spanish language -- Reading materials
TR(GS 513.146 / COO771 1995