U.S. Copyright Renewals, 1971 July - December
Chapter 8
F. B. Knight & G. M. Ruch. © 13Nov44; AA469305. Scott, Foresman & Co. (PWH); 6Dec71; R517877.
STUDEBAKER, J. W. SEE STUDY ARITHMETICS.
STUDY ARITHMETICS; teacher's guidebook.
U.S. Copyright Renewals, 1971 July - December
F. B. Knight & G. M. Ruch. © 13Nov44; AA469305. Scott, Foresman & Co. (PWH); 6Dec71; R517877.
STUDEBAKER, J. W. SEE STUDY ARITHMETICS.
STUDY ARITHMETICS; teacher's guidebook.