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Die Unie se goudreserwe : the Unions̕ gold reserve
Arndt, E. H. D., (1956)
The influence of cyclical changes in national and world income and prices on the South African balance of trade between 1925 and 1939
Marais, G., (1959)
Some basic remarks on the relationship between economic development and the balance of payments
Marais, Georg, (1960)