Salzman, Eric. Twenthieth-century music : an introduction / Eric Salzman. - 2nd ed. - Englewood Cliffs : Prentice-Hall, 1974. - xiii, 242 p. : illus. ; 24 cm. - Prentice-Hall history of music series . Open access. ISBN: 0139350152 LCCN: 7317211 Subjects--Topical Terms: Music--20th century--History and criticism.