Avery, B. W. <br/><br/>
Mineralogy of clayey soils relation to soil classification 

 - Harpenden:  Laws Agricultural trust,  1997. 
 - viii,64p.:  ill.;  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil survey<br/>Soil classification
<br/><br/><label>LC Class. No.: </label>IRA S599.A84