Hewit, A. F. (1868). Problems of the age: With studies in St. Augustine on kindred topics. Catholic Publication House.
Lua i Stíl Chicago (17ú heag.)Hewit, Augustine F. Problems of the Age: With Studies in St. Augustine on Kindred Topics. New York: Catholic Publication House, 1868.
Lua MLA (8ú heag.)Hewit, Augustine F. Problems of the Age: With Studies in St. Augustine on Kindred Topics. Catholic Publication House, 1868.
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