(1989). Felix-Weltsch-Archiv: Gift of Mrs. Ruth Gorinstein ; in memory of her late father the philosopher and librarian Dr. Felix Weltsch ; [Inventarliste].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFelix-Weltsch-Archiv: Gift of Mrs. Ruth Gorinstein ; in Memory of Her Late Father the Philosopher and Librarian Dr. Felix Weltsch ; [Inventarliste]. 1989.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFelix-Weltsch-Archiv: Gift of Mrs. Ruth Gorinstein ; in Memory of Her Late Father the Philosopher and Librarian Dr. Felix Weltsch ; [Inventarliste]. 1989.
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