KNIGHT, F. B.
Study arithmetics. Grade 6. By F. B. Knight, J. W. Studebaker and G. M. Ruch.
KNIGHT, F. B. Study arithmetics. Grade 6. By F. B. Knight, J. W. Studebaker and G. M. Ruch. © 15May36; A95214. Scott, Foresman & Co. (PWH); 20Dec63; R328331.
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