
doi: 10.1086/220317
pmid: 18888130
Approximately one-fith of the white population of the United States reported a mother-tongue other than English in 1940. Those reporting German, Italian, Polish, Spanish, Yiddish, and French each numbered over a million persons. Using the percentage of each language group which was native parents as a rough indicator of persistence, wide differences by language, by geographic area, and by rural-urban residence are revealed.
Tongue, Humans
Tongue, Humans
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