Smogorzhevskii, A.S. The ruler in geometrical constructions/ Translated from the Russi an by Halina Moss. Translation editor: Ian N. Sneddon. - Oxford, New York : Pergamon Press, 1961. - 86 p. : ill. ; 23 cm. - Popular lectures in mathematics series ; v.5. . Subjects--Topical Terms: Geometry, Projective.Rulers (Instruments). Dewey Class. No.: 516.57