FAO Irrigation and drainage paper 8-12 

 - Rome: FAO.,  1971 
 - Various paging 
 - FAO Irrigation and drainage paper no; 8-12 .
<br/><br/>8. Water and the environment. 9. Drainage materials. 10. Integrated farm water management. 11. Planning methodology seminar Bucharest. 12. Farm water management seminar Manila 
<br/><br/><br/>Eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>IRRIGATION.<br/>DRAINAGE.