Integers: positive and negative.
By: Illustrated by Laurie Jo Lambie.
Contributors: Lambie, Laurie Jo, illus.
Series: His The Reason why books
Publisher: John Day Co.
Published: 1972
Place of publication: New York
Language: eng
Number of pages: 47
Subjects: Numbers, Natural -- Juvenile literature.; Number theory.
Description: Explains the meaning of integers and discusses their uses. Includes directions for making a slide rule and a simple adding machine.