Report of the soil correlation study tour in Uruguay, Brazil and Arg entina, June August, 1964. 

 - Rome :    Food and Agriculture Organisation of the United Nations,    1964. 
 - 82 p. :    maps ;    28 cm. 
<br/><br/>  Soil map of the world FAO/UNESCO Project. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Corrosion and anti-corrosives.<br/> Soils.