000
nam a22 4500
020
_a
110
_a
Plusguellec, Herve M.
245
_a
The Gezira Irrigation scheme in Sudam : Objectives, Design and Performance
260
_a
Washington, D.C.
_b
The World Bank
_c
1996
942
_c
22
999
_c
6508
_d
6508