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Country programming as a guide to development
Colm, Gerhard, (1963)
[Besprechung von:] Colm, Gerhard, Theodore Geiger: The economy of the American people. 3. ed. Washington/D. C. 1967
Rohwedder, Jürgen, (1970)
The Economy of American People Progress, Problems, Prospects
Colm, Gerhard, (1961)