United States, Department Of Agriculture, Soil Survey Staff : Soil Survey Manual 

 - Washington  United States Department of Agriculture  1966 
 - vii, 503p. 
 - U.S. Dept. Agri. Handbook No. 18 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>J:1g
<br/><br/><label>Dewey Class. No.: </label>J:1g  / J6