Instruction in arithmetic.

Bibliographic Details
Corporate Author:	National Council of Teachers of Mathematics
Format:	Book
Language:	English
Published:	Washington, [publisher not identified] ; 1960.
Series:	Yearbook (National Council of Teachers of Mathematics) ; 25.
Subjects:	Arithmetic > Study and teaching.

Description
Physical Description:	viii, 366 pages : illustrations
Bibliography:	Includes bibliographies.