Standard service arithmetic workbook. Grade 3. By F. B. Knight, G. M. Ruch & J. W. Studebaker.
KNIGHT, F. B. Standard service arithmetic workbook. Grade 3. By F. B. Knight, G. M. Ruch & J. W. Studebaker. © on revisions & p.34-104; 6Oct32; AA105747. Scott, Foresman & Co. (PWH); 31Dec59; R249370.
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