Trích dẫn kiểu APA (xuất bản lần thứ 7)

O'Brien, M. J. (1919). The unreliability of the first census of the United States as a basis for computing "national origins" quotas under the immigration law of 1924: Shown in the following pages, reproduced from chapter XXIII of "A hidden phase of American hisstory" (Ireland's part in America's struggle for liberty). New York.

Trích dẫn kiểu Chicago (xuất bản lần thứ 7)

O'Brien, Michael J. The Unreliability of the First Census of the United States as a Basis for Computing "National Origins" Quotas Under the Immigration Law of 1924: Shown in the Following Pages, Reproduced from Chapter XXIII of "A Hidden Phase of American Hisstory" (Ireland's Part in America's Struggle for Liberty). New York, 1919.

Trích dẫn kiểu MLA (xuất bản lần thứ 8)

O'Brien, Michael J. The Unreliability of the First Census of the United States as a Basis for Computing "National Origins" Quotas Under the Immigration Law of 1924: Shown in the Following Pages, Reproduced from Chapter XXIII of "A Hidden Phase of American Hisstory" (Ireland's Part in America's Struggle for Liberty). New York, 1919.

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