Wirth, G. (1978). Martin Luther King. Union.
Lua i Stíl Chicago (17ú heag.)Wirth, Günter. Martin Luther King. Berlin: Union, 1978.
Lua MLA (8ú heag.)Wirth, Günter. Martin Luther King. Union, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.