Schumann, W., & Schwarz, G. (1979). The Development of the National Library System on the Basis of the German Democratic Republic's Social Development.
Chicago Style (17th ed.) CitationSchumann, Wolfgang, and Gerhard Schwarz. The Development of the National Library System on the Basis of the German Democratic Republic's Social Development. 1979.
MLA (9th ed.) CitationSchumann, Wolfgang, and Gerhard Schwarz. The Development of the National Library System on the Basis of the German Democratic Republic's Social Development. 1979.
Warning: These citations may not always be 100% accurate.