Methods of study in soil ecology :  proceedings of the Paris Symposium /  
edited by J. Phillipson. 
 - Paris :   UNESCO,   1970.  
 - 303 p. :  ill. ;  24 cm. 
 - Ecologie et conservation.  2 .
<br/><br/>300   300  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil ecology--Technique.
<br/><br/><label>Dewey Class. No.: </label>631.42 / U1m