00477nam a22001217a 4500003000800000005001700008008004100025040002100066082001600087110001100103245019700114300004400311BD-DhUL20150113152917.0150113s1984    pk ||||| |||| 00| 0 eng d  aBD-DhULcBD-DhUL  a627.52bPRO  aUnesco  aProceedings of the Symposium on Scientific Problems of Land Use in Arid Regions, Cairo, Dec. 3--Dec. 9, 1953. Held under the joint auspices of the Egyptian Desert Institute and Unesco.cUnesco  a 	219 p. : 35 cmb ill. , maps ;c35 cm