Clarke, George Robin. <br/><br/>
Soil acidity and its relation to the production of nitrate and ammonia in woodland soils, 
by G. R. Clarke. 
 - Oxford,  The Clarendon press,  1924. 
 - 27 p.  illus., map, diagrs. (part fold.)  28 cm. 
 - Oxford forestry memoirs,  no. 2 .
<br/><br/>Bibliography: p. 6-7. 
<br/><br/><label>LCCN: </label>agr24000617  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forest soils.<br/>Soil acidity.<br/>Nitrates.<br/>Ammonia.
<br/><br/><label>LC Class. No.: </label>S593.5  / .C55