Drainage of agricultural land :  a practical handbook for the plan ning, design, construction and maintainace of agricultural drainage sys tems. 

 - Port Washington, N. Y. :  Water Information Center ,  1973. 
 - 430p. :  ill. ;  26cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drainage.
<br/><br/><label>Dewey Class. No.: </label>631.6