斯多摩 ((Sitomer, Mindel))

零不只是沒有 / by: 哈利.斯多摩 ((Sitmore, Harry)); 斯多摩 ((Sitomer, Mindel)); 漢聲雜誌; 理查.庫法瑞 ((Cuffari, Richard)) (Language materials, printed)

數是怎麼來的? by: CuffariRichard; SitomerHarry; SitomerMindel; 庫法瑞 ((Cuffari, Richard)); 斯多摩 ((Sitomer, Harry)); 斯多摩 ((Sitomer, Mindel)); 漢聲雜誌 (Language materials, printed)

數是怎麼來的 ? = How Did Numbers Begin ? / by: 哈利.斯多摩 ((Sitmore, Richard)); 斯多摩 ((Sitomer, Mindel)); 漢聲雜誌; 理查.庫法瑞 ((Cuffari, Richard)) (Language materials, printed)

直線、線段、多邊形 = Lines, Segments, Polygons / by: 哈利.斯多摩 ((Sitomer, Harry)); 斯多摩 ((Sitomer, Mindel)); 漢聲雜誌; 羅伯特.奎肯布希 ((Quackenbush, Robert)) (Language materials, printed)