Porter, T. J. The social roots of Afro-American music: 1950 - 1970: Thomas J. Porter. A freedomways reader : Afro-America in the seventies.(1977).
Lua i Stíl Chicago (17ú heag.)Porter, Thomas J. "The Social Roots of Afro-American Music: 1950 - 1970: Thomas J. Porter." A Freedomways Reader : Afro-America in the Seventies.(1977) .
Lua MLA (8ú heag.)Porter, Thomas J. "The Social Roots of Afro-American Music: 1950 - 1970: Thomas J. Porter." A Freedomways Reader : Afro-America in the Seventies.(1977), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.