Roszkowski, W. (1930). Third note on Planaria alpina and Planaria gonocephala in the vicinity of Ojcow. Fragmenta Faunistica Mus. Zool. Polon., 1 (6), 6 p.
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Roszkowski, W.
1930
Third note on Planaria alpina and Planaria gonocephala in the vicinity of Ojcow.