Columbia subject headings:
Blues (Music)--1941-1950.
Blues (Music)--1951-1960.
Jazz vocals.
Popular music--1941-1950.
Popular music--1951-1960.
Harvard subject headings:
Blues (Music)--1941-1950
Blues (Music)--1951-1960
Jazz vocals.
Jazz--1941-1950
Jazz--1951-1960
Princeton subject headings:
Jazz vocals.
Jazz--1941-1950.
Jazz--1951-1960.