O' Mara, Gerald T. <br/><br/>
Issues in the efficient use of surface and groundwater in irrigation 
By Gerald T. O'Mara 
 - Washington, D.C.  IBRD  1984 
 - 93p. 
 - World Bank Staff Working Papers, 707 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigation efficiency --Economic aspects --Developing countries<br/>Irrigation water --Government policy --Developing countries
<br/><br/><label>Dewey Class. No.: </label>Y1182 In8is