Keenan, R. (2014). Costa Rica: Lessons from 30 years of forest and environmental policy.
シカゴスタイル引用形Keenan, Rod. Costa Rica: Lessons From 30 Years of Forest and Environmental Policy. 2014.
MLA引用形式Keenan, Rod. Costa Rica: Lessons From 30 Years of Forest and Environmental Policy. 2014.
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