Carson, RT, Mitchell, RC, Hanemann, W.M, Kopp, R.J, Pressor, S. & P and Rund, A. 1992. A Contingent Valuation Study of Lost Passive Use Values resulting from the Exxon Valdez Oil Spill. Report to the Attorney General of the State of Alaska. USA.
Mitchell, R.C. & Carson, R.T. 1989. Using Surveys to Value Public Goods. The Contingent Valuation Method. Washington DC: Resources for the Future.
Bateman, I. 1995. Environmental and economic appraisal. In: Environmental Science for Environmental Management. O'Riordan, T. (Ed). pp45-65. Longman Scientific and Technical.
Mishan, E.J. 1971 Cost Benefit Analysis: an information introduction. Allen and Unwin.
Pearce, D. W. 1971. Cost Benefit Analysis. MacMillan Studies in Economics. MacMillan Press Ltd. London.
Butcher, G.V. 1985. Regional income output and employment multipliers: their uses and estimates of them. MAF Cost Benefit Handbook Volume 4. MAF.
Clough, P. 1993. Economic instruments and visitor services on the public estate. Summary report. New Zealand Institute for Economic research.
Duncan, I., Clough, P., and Lim, E. 1992. Tourism in New Zealand: a regional and national multiplier analysis. NZTB and NZIER.
Gough, J.D., and Ball, R. J. 1995. The contribution of conservation lands to the West Coast regional economy. Research report to the Department of Conservation. February 1995. Information Paper No. 52. Centre for Resource Management and Lincoln Environmental. Lincoln University.
Hubbard, L.J., and Brown, W.A.N. 1981. Multipliers from regional non-survey input-output tables for New Zealand. Agricultural Economics Research Unit. Lincoln University.
Kerr, G.N. 1986. Introduction to Non-Market Valuation: theory and methods. Studies in Resource Management No 1. Centre for Resource Management. Lincoln College
Kerr, G.N. 1985. An introduction to the Travel Cost Method of demand estimation. In: Kerr, G.N., and Sharp, B.M.H. 1985. Valuing the Environment: Economic theory and applications. Studies in Resource Management No 2. Centre for Resource Management. Lincoln College.