Neumann, Eckhard. Functional graphic design in the 20's. - New York Reinhold Pub. Corp. [1967] - 96 p. illus. (part col.) 21 cm. LCCN: 67014159 Subjects--Topical Terms: Graphic arts--History.Commercial art--History. LC Class. No.: NC95 / .N4 Dewey Class. No.: 760/.09