Cottrell, A. (1978). Environmental economics: An introduction for students of the resource and environmental sciences. Edward Arnold.
Цитирование в стиле Чикаго (17-е изд.)Cottrell, Alan. Environmental Economics: An Introduction for Students of the Resource and Environmental Sciences. Edward Arnold, 1978.
Цитирование MLA (9-е изд.)Cottrell, Alan. Environmental Economics: An Introduction for Students of the Resource and Environmental Sciences. Edward Arnold, 1978.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.