Johansson, P. (1996). Cost-benefit analysis of environmental change. U. pr..
Tohutoru Kātū Chicago (17th ed.)Johansson, Per-Olov. Cost-benefit Analysis of Environmental Change. Cambridge: U. pr., 1996.
Tohutoro MLA (9th ed.)Johansson, Per-Olov. Cost-benefit Analysis of Environmental Change. U. pr., 1996.
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