Soil organisms as components of ecosystems / 
editors U. Lohm and T. Persson. 
 -- Stockholm :   NFR Service,   cop. 1977 
 - 614 p. -- 
 (Ecological Bulletins  ; 25).
<br/><br/>ISBN 91-546-0235-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microbiología agraria - Congresos y asambleas<br/>Suelos
<br/><br/><label>Universal Decimal Class. No.: </label>631.461(063) ; 579.64