Thomasson, A. J. <br/><br/>
Soils field drainage 

 - Harpenden:  Lawes Agricultural Trust,  1975. 
 - 80p.:  ill.;  21cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil survey
<br/><br/><label>LC Class. No.: </label>IRA S599.T56