Sternberg, Harry ( 1904-2001) Modern methods and materials of etching / by Harry Sternberg ; photographs by Bruce Elkus. - 1st ed. - New York ; Toronto ; London : McGraw-Hill Book Company, 1949. - 146 p. : fot. ; 25 cm. LCCN: 75889 Subjects--Topical Terms: Aguafuerte.Pintura---Teoría y técnica.