> Multivolume work
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1:
Recent economic changes in the United States 1 report of the United States / Committee on Recent Economic Changes; Herbert Hoover, chairman
New York: National Bureau of Economic Research, 19XX-
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2:
Recent economic changes in the United States 2 report of the United States / Committee on Recent Economic Changes; Herbert Hoover, chairman
New York: National Bureau of Economic Research, 19XX-