"Immigrants United States History 20th century." . . . . . . . . "History" . "History"@en . . . . . "An account of immigration to the U.S.A. in the twentieth century." . "Juvenile works" . . "This book discusses various issues associated with immigration to the United States during the early part of the twentieth century including the Chinese Exclusion Act of 1882, Ellis Island, tenements and sweatshops, and the rise of anti-Semitism."@en . . "Twentieth-century immigration to the United States" . "Twentieth-century immigration to the United States"@en . . "Immigrants." . . . . "Emigration and immigration." . . "1900 - 1999" . . "United States" . . "United States." .