Soubiran, Julien J. The art and technique of photo-engraving. - [2d rev. ed.] - [New York? 1952] - xiii, 104 p. illus. 20 cm. LCCN: 52009351 /L/r38 Subjects--Topical Terms: Photoengraving LC Class. No.: TR970 / .S68 1952 Dewey Class. No.: 777 655.32*