Cottrell, A. (1978). Environmental economics: An introduction for students of the resource and environmental sciences. Edward Arnold.
Citace podle Chicago (17th ed.)Cottrell, Alan. Environmental Economics: An Introduction for Students of the Resource and Environmental Sciences. Londres: Edward Arnold, 1978.
Citace podle MLA (9th ed.)Cottrell, Alan. Environmental Economics: An Introduction for Students of the Resource and Environmental Sciences. Edward Arnold, 1978.
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