Classification. Class M music and books on music. - U. S. Library of Congress. Subject Cataloging Division; United States Library of Congress. Music Division. Classification. Class M, Music (Washington s.n., 1957)
First ed. published in 1904, by the Music Division of the Library of Congress, under title : Classification. Class M, Music; Class ML, Literature of music; Class MT, Musical instruction.
Keywords: Classification -- Books -- Music; Classification -- Music