Powell, R. A., Jensen, R. C., & Gibson, A. L. (1985). The economic impact of irrigated agriculture in NSW: A report to the New South Wales Irrigators' Council Limited. Dept. of Agricultural Economics and Business Management, University of New England ; Dept. of Economics, University of Queensland.

Powell, R. A., R. C. Jensen, and Anne L. Gibson. The Economic Impact of Irrigated Agriculture in NSW: A Report to the New South Wales Irrigators' Council Limited. Armidale, N.S.W. : St. Lucia, Qld.: Dept. of Agricultural Economics and Business Management, University of New England ; Dept. of Economics, University of Queensland, 1985.

Powell, R. A., et al. The Economic Impact of Irrigated Agriculture in NSW: A Report to the New South Wales Irrigators' Council Limited. Dept. of Agricultural Economics and Business Management, University of New England ; Dept. of Economics, University of Queensland, 1985.