Wieczynski, J. L. (1988). Supplement. Archives in the Union Republics of the Soviet Union - Daugavpils. Acad. Int. Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWieczynski, Joseph L. Supplement. Archives in the Union Republics of the Soviet Union - Daugavpils. Gulf Breeze: Acad. Int. Press, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWieczynski, Joseph L. Supplement. Archives in the Union Republics of the Soviet Union - Daugavpils. Acad. Int. Press, 1988.
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