Arzey, G. Mechanisms of the spread of Newcastle disease / G. Arzey. - Sydney : NSW Agriculture & Fisheries [199?]. - ii, 12 p. - Technical bulletin / NSW Agriculture and Fisheries, 42 03118576 ; . - Technical bulletin (NSW Agriculture and Fisheries) ; 42 . Includes bibliographic references. ISBN: 0730566412 LCCN: 92013069 Subjects--Topical Terms: Newcastle disease.Newcastle disease--Epidemics.