Não informado. (1983). Bulletin of the Polish Academy of Sciences. Polish Academy of Sciences.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Polish Academy of Sciences. Warsaw: Polish Academy of Sciences, 1983.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Polish Academy of Sciences. Polish Academy of Sciences, 1983.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.