Lang Paul Henry Problems of modern music / Paul Henry Lang ed. - New York : London : Norton and company ; Chapman & Hall, 1960. - 120p ; 20cm. Nat. Bib. No.: 32003469 Nat. Bib. Agency Control No.: 1042720 ChTaNC Subjects--Topical Terms: 樂 Subjects--Geographic Terms: United States--Social conditions. LC Class. No.: HT151 / .D3 Dewey Class. No.: 323.3520973