Kovda, V.A. <br/><br/>
Biosphere, soils and their utilization  : report of the President... 
V.A. Kovda 
 - Moscow  [s.n.]  1974 
 - 125 p.  22 cm 
<br/><br/>En port.: Academy of Sciences of the USSR. All-Union Society of Soil Science, Institute of Agrochemistry and Soil Science Precede al tít. : Materials of the 10th International Congress of Soil Science 
<br/><br/><label>Subjects--Index Terms: </label>Residuos Biologia del suelo Recursos naturales Ciencia del suelo Suelo