Soil biology  : reviews of research 

 - Paris :  UNESCO,  1969 
 - 240 p.  : ilus. 
 - Natural resources research  ; 9 .
 - Natural resources research  ; 9 .
<br/><br/><label>LCCN: </label>46010 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos--Biología.
<br/><br/><label>Dewey Class. No.: </label>631.46  / U5