Environmental economics : an introduction for students of the resource and environmental sciences / [by] Alan Cottrell. Cottrell, Alan, 1919-2012. Environmental policy. Economics. Conservation of natural resources. Human ecology. HC79.E5 C67 1978b 301.3 19 COE Includes index. Bibliography: p. 62-64. London : Edward Arnold, 1978. 1978. 1978 Text vi, 66 p. : eng Resource and environmental sciences series Resource and environmental sciences series (London, England)