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1ডাক সংখ্যা: S 13999গ্রন্থ
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2অনুযায়ী Todtenhaupt, Dieter, Kurzweil, Andreas
প্রকাশিত Proceedings of the First International Symposium on Wood Tar and Pitch : held by the Biskupin Museum (department of the State Archaeological Museum in Warsaw) and the Museumsdorf Düppel (Berlin) at Biskupin Museum, Poland July 1st - 4th 1993 / ed. by Wojviech Brzezinski ... - Warszawa, 1997. - S. 97-114 : zahlr. Ill., Kt. (1997)ডাক সংখ্যা: D 1399 / 128প্রবন্ধ