共 13 条
[1]
ABU A, OUR WATER RESOURCES
[2]
HURST HE, 1931, NILE BASIN, V3
[3]
HURST HE, 1931, NILE BASIN, V11
[4]
HURST HE, 1931, NILE BASIN, V7
[5]
HURST HE, 1931, NILE BASIN, V10
[6]
HURST HE, 1931, NILE BASIN, V1
[7]
HURST HE, 1957, NILE GENERAL ACCOUNT
[8]
IBRAHIM AM, 1977, LIKELY IRRIGATED AGR
[9]
IBRAHIM AM, 1975, JONGLEI DEV PROJECT
[10]
KAMAL AM, 1977, MAR UN WAT C