Okrent, D. (2019). The guarded gate: Bigotry, eugenics, and the law that kept two generations of Jews, Italians, and other European immigrants out of America (First Scribner hardcover edition.). Scribner.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Okrent, Daniel. The Guarded Gate: Bigotry, Eugenics, and the Law That Kept Two Generations of Jews, Italians, and Other European Immigrants Out of America. First Scribner hardcover edition. New York: Scribner, 2019.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Okrent, Daniel. The Guarded Gate: Bigotry, Eugenics, and the Law That Kept Two Generations of Jews, Italians, and Other European Immigrants Out of America. First Scribner hardcover edition. Scribner, 2019.
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