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Economics of conservation : proceedings from a workshop, held in Maseru, March 1 - 8, 1988
(1988)
A review of cost-benefit studies of soil and water conservation projects
Bojö, Jan, (1986)
Cost-benefit analysis of soil and water conservation projects : report from a seminar held in Maseru, April 21 - 25, 1986
(1986)
Price caps and the error in X-factor calculations
Uri, Noel Dean, (2000)
Energy and the use of conservation tillage in US agriculture
Uri, Noel Dean, (1999)
Measuring productivity change in telecommunications