Richards, Edgar. <br/><br/>
Principles and methods of soil analysis. 
[By] Edgar Richards ... 
 - Washington,  Govt. print. off.,  1886. 
 - 66 p.  incl. tables.  23 cm. 
 - U. S. Dept. of agriculture. Division of Chemistry. Bulletin  no. 10 .
 - United States.  Bureau of Chemistry.  Bulletin ;  no. 10. .
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<br/><br/><label>LCCN: </label>agr09001046  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Analysis.
<br/><br/><label>LC Class. No.: </label>S593  / .R52