Arid land resource inventories : developing cost-efficient methods : Inventarios de recursos de tierras áridas : desarrollo de métodos eficientes en costos /

by An international workshop (1980 november 30-December 6 : La Paz, México). 17244, Lund, H. Gyde, coord. 17247, International Union of Forestry Research Organizations. 17248, United States. Forest Service. 17249
Published 1981