World soil resources reports. (1991). World soil resources: An explanatory note on the FAO world soil resources map at 1:25,000,000 scale. Rome: Food and Agriculture Organization of the United Nations.
Style de citation ChicagoWorld soil resources reports. World Soil Resources: An Explanatory Note On the FAO World Soil Resources Map At 1:25,000,000 Scale. Rome: Food and Agriculture Organization of the United Nations, 1991.
Style de citation MLAWorld soil resources reports. World Soil Resources: An Explanatory Note On the FAO World Soil Resources Map At 1:25,000,000 Scale. Rome: Food and Agriculture Organization of the United Nations, 1991.
Attention : ces citations peuvent ne pas être correctes à 100%.