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