00673nam a2200169Ia 4500001001100000005001700011008004100028020001500069050002100084245020100105250001500306260004200321300002900363504005700392650002600449650002800475000000057520251012174256.0  970829s1998    dcua     b   i000 0 eng  a082134067000aTC812b.P53 199800aPlanning the management, operation, and maintenance of irrigation and drainage systemsba guide for the preparation of strategies and manualscInternational Commission on Irrigation and Drainage.   a[2nd ed.].  aWashington, D.C.bWorld Bankcc1998.   axi, 120 p.bill.c27 cm.  aIncludes bibliographical references (p. [114]-120).  0aDrainagexManagement. 0aIrrigationxManagement.