Noemer, Ewald Fred. The handbook of modern halftone photography with complete concepts & practices by Ewald Fred Noemer. - 6th ed. - Demarest, N.J. Perfect-Grafic-Arts Supply Co. 1975. - 191 p. ill. 24 cm. Includes bibliographical references. ISBN: 0911126058 LCCN: 75018829 Subjects--Topical Terms: Photoengraving--Halftone process. LC Class. No.: TR975 / .N6 1975 Dewey Class. No.: 686.2/327