Study arithmetics, book 8, teacher's guidebook. Mathematics and life, book 2.
R575019. Study arithmetics, book 8, teacher's guidebook. Mathematics and life, book 2. By F. B. Knight. J. W. Studebaker & Gladys Tate. © 8Apr47; AA50351. Scott, Foresman and Company (PWH); 17Apr74; R575019.
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