Soil biology :  reviews of research / 
Unesco. 
 - Paris :  UNESCO,  1969. 
 - 240 p., plates : 
<br/><br/> Errata slip inserted. 
<br/><br/><label>ISBN: </label>SC1477 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil biology.
<br/><br/><label>Dewey Class. No.: </label>631.46  / So