Unit mastery mathematics
By: by John C. Stone, Clifford N. Mills, Virgil S. Mallor
Contributors: Mallory, V. Standish (Virgil Standish), 1919-; Mills, Clifford Newton, 1886-
Publisher: B.H. Sanborn & Co.
Published: 1935
Place of publication: Chicago
Language: eng
Subjects: Mathematics
Notes: "Ruler square protractor" in pocket on lining-paper of books 1-2.