Cromie, Ruth L, Martin J Brown, and J L Stanford. 1965. “The Epidemiology of Avian Tuberculosis in White-Winged Wood Ducks Cairina Scutulata at The Wildfowl and Wetlands Trust, Slimbridge Centre (1976-91)”. Wildfowl 16 (June):211-14. https://tidsskrift.dk/Wildfowl/article/view/155214.