FAO. (1995). World soil resources reports N.80: Soil survey: Perspectives and strategies for the 21st century. Rome: FAO.
Chicago Stili AlıntıFAO. World Soil Resources Reports N.80: Soil Survey: Perspectives and Strategies for the 21st Century. Rome: FAO, 1995.
MLA AlıntıFAO. World Soil Resources Reports N.80: Soil Survey: Perspectives and Strategies for the 21st Century. Rome: FAO, 1995.
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