APA (7th ed.) Citation

Akademie der Wissenschaften der DDR, Panorama DDR (Firm), & Intertext, Fremdsprachendienst der DDR. (1989). Information GDR: The comprehensive and authoritative reference source of the German Democratic Republic. Pergamon Press.

Chicago Style (17th ed.) Citation

Akademie der Wissenschaften der DDR, Panorama DDR (Firm), and Fremdsprachendienst der DDR Intertext. Information GDR: The Comprehensive and Authoritative Reference Source of the German Democratic Republic. Oxford [England] ; New York: Pergamon Press, 1989.

MLA (9th ed.) Citation

Akademie der Wissenschaften der DDR, et al. Information GDR: The Comprehensive and Authoritative Reference Source of the German Democratic Republic. Pergamon Press, 1989.