Congress Publishing House, Berlin
A 1955 description of Congress Publishing House (Kongress-Verlag in German) stated, "...Kongress-Verlag makes every effort to objectively describe the economic, political and cultural development of the German Democratic Republic, to serve international friendship and world peace...". The publisher was organized in 1948 and it was located in East Germany in the Soviet sector of Berlin at 8-9 Ernst-Thälmann-Platz. Congress Publishing House disseminated not only political literature but it in 1949, it published the citizen's copy of the Constitution of the German Democratic Republic (DDR).
Gast, I. (1989). Der Kongress-Verlag 1948-1962: Bibliographie. Berlin: Institut für Marxismus-Leninismus beim ZK der SED, Bibliothek. (mention of citizen's copy of the Constitution)
American book trade directory. (1963). New York: R.R. Bowker. (P. 718, address of Kongress-Verlag)
Verband der Deutschen Journalisten. (1955). Handbuch der demokratischen Presse. Berlin: Verlag Die Wirtschaft. (Section covering Die Bücher und Schriften des Kongress-Verlages and quote)