Soil microbiology 
edited by N. Walker 
 - London  Butterworths  1975 
 - 262 p.  ill  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil microbiology
<br/><br/><label>Dewey Class. No.: </label>576  / .19  / 0948