Smedema, Lambert K. <br/><br/>
Land drainage  planning and design of agricultural drainage systems 
Lambert K. Smedema, David W. Rycroft 
 - London  Batsford Academic & Educational  1983 
 - 376 p.  ill.  24cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drainage