Piper, K. (1953). Offener Horizont: Festschrift fur Karl Jaspers. R. Piper & Co.
Chicago Style (17th ed.) CitationPiper, Klaus. Offener Horizont: Festschrift Fur Karl Jaspers. Munchen: R. Piper & Co, 1953.
MLA (9th ed.) CitationPiper, Klaus. Offener Horizont: Festschrift Fur Karl Jaspers. R. Piper & Co, 1953.
Warning: These citations may not always be 100% accurate.