000 nam a22 4500
082 _aRID.631.7
_bR6m
_d1987
245 _aMaintenance of irrigation project and operation (MIP&O)
260 _aGermeny
_bGitec Consult Gmbh
_c1987
710 _aRoyal Irrigation Department
942 _c12
_01
999 _c2213
_d2213