Mode, H., & Feist, P. H. (1951). Was Siegel erzählen (21.-40. Tausend.). Kinderbuchverlag.
Chicago Style (17th ed.) CitationMode, Heinz, and Peter H. Feist. Was Siegel Erzählen. 21.-40. Tausend. Berlin: Kinderbuchverlag, 1951.
MLA (8th ed.) CitationMode, Heinz, and Peter H. Feist. Was Siegel Erzählen. 21.-40. Tausend. Kinderbuchverlag, 1951.
Warning: These citations may not always be 100% accurate.