 | Charles C. Chester - 2012 - 281 lapas
...1 .html. Halffter, Gonzalo, and Exequiel Ezcurra. 1987. Evolution of the biosphere reserve concept. In Proceedings of the Symposium on Biosphere Reserves, Fourth World Wilderness Congress, September 14—17, 1987, Estes Park, Colorado, ed. William P. Gregg Jr., Stanley L. Krugman, and James... | |
 | Aletta Biersack, James B. Greenberg - 2006 - 444 lapas
...Publishers. Engel, J. Ronald. 1989. "The Symbolic and Ethical Dimension of the Biosphere Reserve Concept." In Proceedings of the Symposium on Biosphere Reserves, Fourth World Wilderness Congress, Estes Park, Colorado, Sept. 11-18, 1987, ed. William P. Gregg, Jr., Stanley L. Krugman, and James D.... | |
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Dimension of the Biosphere Reserve Concept." In Proceedings of the Symposium on Biosphere Reserves, Fourth World Wilderness Congress, Estes Park, Colorado, Sept. 