> Verlagsreihe
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81:
The American economy in 1960 economic progress in a world of tension by Gerhard Colm
Washington: National Planning Association, 1952
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54/55:
The big 4 in Germany the treatment of Germany as an economic unit by David L. Glickman
Washington: National Planning Association, 1947
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18:
The economic pattern of world population by J. B. Condliffe
Washington, DC: National Planning Association, 1943