J. W. Studebaker, W. C. Findley. F. B. Knight & G. M. Ruch.
STUDY ARITHMETICS; teacher's guidebook. Book 4.
STUDY ARITHMETICS; teacher's guidebook. Book 4. By J. W. Studebaker, W. C. Findley. F. B. Knight & G. M. Ruch. © 24Oct44; AA467502. Scott, Foresman & Co. (PWH); 29Oct71; R515605.
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