Benedict, P. ...[et al.]
Sudan : the Rahad Irrigation Project - U.S. Agency for International Development 1982 - A.I.D. project evaluation report No.31 .
IRRIGATION-SUDAN
626.81(624) / S8
Sudan : the Rahad Irrigation Project - U.S. Agency for International Development 1982 - A.I.D. project evaluation report No.31 .
IRRIGATION-SUDAN
626.81(624) / S8