Gray, T.R.G. <br/><br/>
Soil micro-organisms 

 - London  Longman  1971 
 - 240 
<br/><br/><label>ISBN: </label>0-582-44160-9 
<br/><br/><label>Subjects--Index Terms: </label>MICROBIOLOGY SOIL MICRO-ORGANISMS 
<br/><br/><label>Dewey Class. No.: </label>333.95