00511cas|a2200169|i|45000010006000000050017000060080041000230350017000640350009000810400031000900410008001212100015001292450071001442600015002157100057002308660054002874798020260716125458.0041221u19uu199uii uu p             eng d  atr2004647980  atr98  aPOZN 93/BJcPOZN 93/BJdIK0 aeng1 aNewsletter00aNewsletter /cInternational Commission on Irrigation and Drainage.  aNew Delhi.20aInternational Commission on Irrigation and Drainage.  aBUPPbC-CPcC-36171tNo. 3-4 (1997)tNo. 1 (1998)