Schumann, Robert 1810-1856 6 etudes in the form of a canon : op. 56 / [Música impresa] Schumann ; transcribed for two pianos, four hands by Claude Debussy ; [edited by Isidor] Philipp. - New York : International Music Co., c1952. - (23, 23 p.) ; 31 cm. International Music 1783 LCCN: 3315 Subjects--Topical Terms: Piano, Música per a (Pianos (2))---Partitures.