Hufschmidt, M. M., & Hyman, E. L. (1982). Economic approaches to natural resource and environmental quality analysis: Proceedings and papers of a conference on Extended Benefit-Cost Analysis held at the Environment and Policy Institute, East-West Center, Honolulu, Hawaii, 19-26 September 1979. Dublin: Tycooly International Publishing Ltd..

Hufschmidt, Maynard M., and Eric L. Hyman. Economic Approaches to Natural Resource and Environmental Quality Analysis: Proceedings and Papers of a Conference On Extended Benefit-Cost Analysis Held At the Environment and Policy Institute, East-West Center, Honolulu, Hawaii, 19-26 September 1979. Dublin: Tycooly International Publishing Ltd., 1982.

Hufschmidt, Maynard M., and Eric L. Hyman. Economic Approaches to Natural Resource and Environmental Quality Analysis: Proceedings and Papers of a Conference On Extended Benefit-Cost Analysis Held At the Environment and Policy Institute, East-West Center, Honolulu, Hawaii, 19-26 September 1979. Dublin: Tycooly International Publishing Ltd., 1982.