Search for: [Subject and Keywords = Ruszkowski, Jerzy \(1887\-1934\)] OR [Subject and Keywords = naturalists] OR [Subject and Keywords = zoologists] OR [Subject and Keywords = parasitologists] OR [Subject and Keywords = academics] OR [Subject and Keywords = Chair of Zoology UW] OR [Subject and Keywords = Warsaw University] OR [Subject and Keywords = biologists \- Poland \- biography] OR [Subject and Keywords = Ruszkowski, Jerzy \(1887\-1934\)] OR [Subject and Keywords = przyrodnicy] OR [Subject and Keywords = zoolodzy] OR [Subject and Keywords = parazytolodzy] OR [Subject and Keywords = pracownicy naukowi] OR [Subject and Keywords = Zakład Zoologii UW] OR [Subject and Keywords = Uniwersystet Warszawski] OR [Subject and Keywords = Biolodzy \-\- Polska \-\- biografie] OR [Title = Jerzy Ruszkowski] OR [Title = Jerzy Ruszkowski]