Romanowski, Jerzy, and Karolina Karpowicz. β€œThe Occurrence of Muskrat Ondatra Zibethicus in Central and Eastern Poland in the Period 1996–2007”. Studia Ecologiae et Bioethicae 11, no. 1 (March 31, 2013): 49–61. Accessed October 2, 2024. https://czasopisma.uksw.edu.pl/index.php/seb/article/view/3123.