Directory of German studies : departments, programs, and faculties in the United States and Canada 1990
edited by. Valters Nollendorfs and Geoffrey S. Koby
German Studies Information, 1991
 Buku Referensi
McKeane, Alasdair
German
Longman, 1994
 Buku Teks
Economics : a biannual collection of recent German studies
Institute for Scientific Co-Opertaion,
 Majalah, Jurnal, Buletin
White book On the policy of the two German states: peace or atomic war?
Foreign Affairs, 1960
 Buku Teks
Bellow's German dictionary German - English, English - German
London, London Longmans
 Buku Referensi