Methods of study in quantitative soil ecology : population, production and energy flow / 
edited by J. Phillipson. 
 -- London :   International Biological Programme ; Oxford,   1971 
 - 297 p. -- 
 (IHP Handbook  ; 18).
<br/><br/>ISBN 84-632-05680-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biología del suelo<br/>Ecología<br/>Microbiología<br/>Suelos
<br/><br/><label>Universal Decimal Class. No.: </label>631.46 ; 579