Schreiner, Oswald,  1875- <br/><br/>
Chemical nature of soil organic matter. 
By Oswald Schreiner and Edmund C. Shorey. 
 - Washington,  Govt. print. off.,  1910. 
 - 48 p.  pl.  23 cm. 
<br/><br/><label>LCCN: </label>agr10001894  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Analysis.
<br/><br/><label>LC Class. No.: </label>S591  / .A12 no. 74