Cottrell, A. (1978). Environmental economics: An introduction for students of the resource and environmental sciences. Edward Arnold.
Citazione stile Chigago Style (17a edizione)Cottrell, Alan. Environmental Economics: An Introduction for Students of the Resource and Environmental Sciences. Londres: Edward Arnold, 1978.
Citatione MLA (9a ed.)Cottrell, Alan. Environmental Economics: An Introduction for Students of the Resource and Environmental Sciences. Edward Arnold, 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.