Soil survey laboratory methods / 
edited by B.W.Avery, C.L.Bascomb 
 - [England]  Harpenden  1974 
 - 83 pages 
 - Technical monograph series No.6 .
<br/><br/> Include appendix 
<br/><br/><label>ISBN: </label>62311 
<br/><br/><label>Dewey Class. No.: </label>631.47  / SOI