Halse, S.A., Jaensch, R.P., Munro, D.R. and Pearson, G.B. 1990. Annual waterfowl counts in south-western Australia – 1988/89. Technical Report 25. Department of Conservation and Land Management, Perth, 43 pp. Download
Halse, S.A., Jaensch, R.P., Munro, D.R. and Pearson, G.B. 1990. Annual waterfowl counts in south-western Australia – 1988/89. Technical Report 25. Department of Conservation and Land Management, Perth, 43 pp. Download