Coker, A., & Richards, C. (1992). Valuing the environment: : economic approaches to environmental evaluation: proceedings of a workshop held at Ludgrove Hall, Middlesex Polytechnic, on 13 and 14 June 1990. London: Belhaven Press.
Παραπομπή Chicago StyleCoker, Annabel, and Cathy Richards. Valuing the Environment: : Economic Approaches to Environmental Evaluation: Proceedings of a Workshop Held At Ludgrove Hall, Middlesex Polytechnic, On 13 and 14 June 1990. London: Belhaven Press, 1992.
Παραπομπή MLACoker, Annabel, and Cathy Richards. Valuing the Environment: : Economic Approaches to Environmental Evaluation: Proceedings of a Workshop Held At Ludgrove Hall, Middlesex Polytechnic, On 13 and 14 June 1990. London: Belhaven Press, 1992.
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