Hagan, Robert Mower, 1916- <br/><br/>
Successful irrigation:  planning, development, management / 
Robert M. Hagan, Clyde E Houston. 
 - Rome:  Food and Agriculture Organization of the United Nations,  1968. 
 - 53 p. :   ill. ;   28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigation