Yousanyouhou

洋算用法　初編

Yousan youhou

Yousan youhou

yozan hayamanabi

Youzan youhou

算法珎書初編

籌算捷法/初編

算法捷径初編

beisen munezanyo

Youzan shoho

算法点竄指南録　初編

Sampou seisuu kigen shou : shohen

西洋穴探　初編

Shougaku sandai shohen

洋算早学 二編

yozan hayamanabi

初学算法

Seiyou sanpou

Seiyou sanpou

Things western

Things western

Things western

Things western

Things western