Sharp, Evelyn.
A parent's guide to more new math slide rules and peanut butter.
- [1st ed.]
- New York Dutton 1966.
- 164 p. illus. 21 cm.
Bibliography: p. 157-159.
66012256
Arithmetic--Study and teaching (Elementary)
Mathematics--Study and teaching (Elementary)
QA135.5 / .S46
510