Boltianskii, V. G. 1925- Equivalent and equidecomposable figures/ [by] V.G. Boltyanskii. Translated and adapted from the 1st Russian ed. (1956) by Alfred K. Henn and Charles E. Watts. - Boston: Heath, [1963]. - 68 p.: illus., 21 cm. - Topics in mathematics . Bibliography: p. 67-68. LCCN: 61017839 //r893 Subjects--Topical Terms: PolygonsPolyhedra.Transformations (Mathematics) Dewey Class. No.: 513.1 / B694e