Problems of economic growth and planning : the Sudan example ; some aspects and implications of the current ten year plan /
[translated by R.C. Freeston with subsequent additions by the author].
- Berlin ; New York : Berlin ; New York : Springer-Verlag, 1966.
- Afrika-Studien ; Nr. 9 .
At head of title-page:-Ifo Institut fur Wirtschaftsforschung Afrika-Studienstelle.