Gray, T. R. G. (Timothy Robert George) <br/><br/>
Soil micro-organisms 
(by) T.R.G. Gray and S.T. Williams 
 - Edinburgh  Oliver & Boyd  1971 
 - viii, 240 p. : ill., plates ; 22 cm. 
 - University reviews in botany  2 .
<br/><br/>Bibl.: p.197-234. - Index 
<br/><br/><label>ISBN: </label>0050023225 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil micro--organisms