Gaya APA

Hellberg, C. (1979). A voice of the voiceles, the involvement of the Lutheran World Federation in Southern Africa 1947-1977. . Lund: Berlings.

Gaya MLA

Hellberg, Carl-J.. "A voice of the voiceles, the involvement of the Lutheran World Federation in Southern Africa 1947-1977. ". Lund: Berlings, 1979. Buku.