000 00297cam a2200109ua 4500
020 _a81 85068 43 7
082 _a627.5
245 _aFifteenth Congress on Irrigation and Drainage,The Hague ,Netherlands vol-1-J
260 _a :
_bICID and CIID ,
_c1993.
300 _a111 ; .
942 _cREF
999 _c333229
_d333229