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Journal Article How to Save Tropical Biodiversity: The National Biodiversity Institute of Costa Rica Get access Daniel H. Janzen Daniel H. Janzen Search for other works by this author on: Oxford Academic Google Scholar American Entomologist, Volume 37, Issue 3, Fall 1991, Pages 159–171, https://doi.org/10.1093/ae/37.3.159 Published: 01 July 1991
Daniel H. Janzen (Tue,) studied this question.