Soil  the yearbook of agriculture 1957 

 - Washington  The United States Department of Agriculture 
 - xiii,784p.  22cm 
 - 85th Congress, 1st session, house of document No.30 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil science
<br/><br/><label>Dewey Class. No.: </label>631.4  / SOI