Jarman, T.L., author
The Cresset Press, 1955
Buku Teks
Arntz, Helmut, author
Press and Information Office of the Federal German, 1962
Buku Teks
Arntz, Helmut, author
The Press and Information Office of the federal Germa Govermant, [1967]
Buku Teks
Holborn, Hajo, 1902-1969, author
Alfreed A. Knopf, 1969
Buku Teks
Berlin : Media Consulta, 1993
Buku Teks