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Resources and world development : report of the Dahlem workshop on resources and world development : part A, energy and minerals, Berlin, January 12-17, 1986 : part B, water and land, Berlin, April 27-May 2, 1986 / D.J. McLaren and B.J. Skinner, editors ; rapporteurs, J.H. DeYoung, Jr. ... [and others] |
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