Unit mastery arithmetic
By: by John C. Stone, Clifford N. Mills,  illustrated by Marion C. Allen.
Contributors: Mills, Clifford Newton, b. 1886, joint author.
Publisher: B. H. Sanborn & co.
Published: 1932
Place of publication: Chicago; New York
Language: eng
Subjects: Arithmetic.
Notes: Primary book.--Intermediate book.--Advanced book.