TruszczyĆski, M Ovine rickettsiosis as an epizootical and epidemical problem in Poland. [electronic resource] - Bulletin - Office international des epizooties May 1968 - 297-303 p. digital Publication Type: Journal Article ISSN: 0300-9823 Subjects--Topical Terms: AnimalsPolandRickettsia Infections--epidemiologySheepSheep Diseases--epidemiology