Dyfyniad APA

Turner, R. K., Button, K. J., & Nijkamp, P. (1999). Ecosystems and nature: Economics, science and policy. E. Elgar.

Dyfyniad Arddull Chicago

Turner, R. Kerry, Kenneth John Button, and Peter Nijkamp. Ecosystems and Nature: Economics, Science and Policy. Cheltenham, Eng: E. Elgar, 1999.

Dyfyniad MLA

Turner, R. Kerry, et al. Ecosystems and Nature: Economics, Science and Policy. E. Elgar, 1999.

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