Soil erosion and its control in arid and semi-arid zones; proceedings of the Karachi symposium. - Symposium on Soil Erosion and its Control in the Arid and Semi-arid Zones (1957 : Karachi); Food and Agriculture Council (Pakistan); Unesco (Karachi, Food and Agriculture Council, Pakistan, 1960)
"Held ... under the joint auspices of F.A.C.P. and UNESCO."
Includes bibliographies.
Keywords: Soil conservation -- Congresses; Arid regions -- Congresses; Erosion