Soil survey manual 

 - [Washington]  Agricultural Research Administration, United States Departme  1951 
 - vii, 503 pages 
 - U.S.Dept. Agriculture handbook No. 18. .
<br/><br/> Include appendix and references<br/> 
<br/><br/><label>ISBN: </label>209429 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil survey
<br/><br/><label>Dewey Class. No.: </label>624.1517  / SOI