Beskin, N. M. Dividing a segment into a given ratio/ N. M. Beskin ; translated from the Russian by V. Zhitomirsky. - Moscow: Mir, 1975. - 70 p.: ill.; 20 cm. - Little mathematics library . Translation of: Delenie otrezka v dannom otnoshenii. Subjects--Topical Terms: Geometry, Plane. Dewey Class. No.: 516.22 / B554d