Foster John & Edited by Foster , J. (1997). Valuing nature?: Ethics, economics and the environment. Routledge.
Chicago Style (17. basım) AtıfFoster John ve John Edited by Foster. Valuing Nature?: Ethics, Economics and the Environment. London: Routledge, 1997.
MLA (9th ed.) AtıfFoster John ve John Edited by Foster. Valuing Nature?: Ethics, Economics and the Environment. Routledge, 1997.
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