Sozialdemokratische Partei Deutschlands. (1990). Basic programme and Berlin declaration of the Social Democratic Party of Germany: Adopted by the Programme Conference of the Social Democratic Party of Germany at Berlin on 20th December 1989 ([Mikrofiche-Ausg.].).
Chicago-Zitierstil (17. Ausg.)Sozialdemokratische Partei Deutschlands. Basic Programme and Berlin Declaration of the Social Democratic Party of Germany: Adopted by the Programme Conference of the Social Democratic Party of Germany at Berlin on 20th December 1989. [Mikrofiche-Ausg.]. Bonn, 1990.
MLA-Zitierstil (9. Ausg.)Sozialdemokratische Partei Deutschlands. Basic Programme and Berlin Declaration of the Social Democratic Party of Germany: Adopted by the Programme Conference of the Social Democratic Party of Germany at Berlin on 20th December 1989. [Mikrofiche-Ausg.]. 1990.