KNIGHT, F. B.
Study arithmetics. Grade 6. Prelim. print, of p.8-134. By F. B. Knight, J. W. Studebaker and G. M. Ruch.
KNIGHT, F. B. Study arithmetics. Grade 6. Prelim. print, of p.8-134. By F. B. Knight, J. W. Studebaker and G. M. Ruch. © 10Apr36; AA201162. Scott, Foresman & Co. (PWH); 20Dec63; R328347.
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