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1.

図書
図書
1. Statistical abstract of the United States : national data book and guide to sources (1878 - 2012 : 131st ed. : pbk)
United States. Bureau of the Census ; United States. Bureau of Foreign and Domestic Commerce
出版情報: Washington, D.C. : U.S. G.P.O., [1878]-
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2.

雑誌
雑誌
2. The journal of political economy
出版情報: Chicago : University Press of Chicago, 1892-
巻次年月次: Vol. 1, no. 1 (Dec. 1892)-
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