Weiss, R., Vladimir Milicic, & Thomas Schlotterback. (1991). Festschrift for Ulrich Mammitzsch: The Bessarabian-Germans: A brief Retroperspective. Western Washington University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWeiss, Rudolf, Vladimir Milicic, और Thomas Schlotterback. Festschrift for Ulrich Mammitzsch: The Bessarabian-Germans: A Brief Retroperspective. Bellingham ; Washington: Western Washington University, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWeiss, Rudolf, et al. Festschrift for Ulrich Mammitzsch: The Bessarabian-Germans: A Brief Retroperspective. Western Washington University, 1991.
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