Drainage of agricultural land :  a practical handbook for the planning, design, construction, and maintenance of agricultural drainage systems. 
/por United States Soil Conservation Service 
 - Port Washington, N.Y., :  Water Information Center,  1973 
 - 430 p. :  ilus. 
<br/><br/><label>ISBN: </label>0912394064 
<br/><br/><label>LCCN: </label>102575 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drenaje agrícola.
<br/><br/><label>Dewey Class. No.: </label>631.62  / D44