Não informado. (2003). Polish Journal of Natural Sciences. University of Warmia and Mazury in Olsztyn.
Chicago-viite (17. p.)Não informado. Polish Journal of Natural Sciences. Olsztyn, Polonia: University of Warmia and Mazury in Olsztyn, 2003.
MLA-viite (8. p.)Não informado. Polish Journal of Natural Sciences. University of Warmia and Mazury in Olsztyn, 2003.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.