Kells, C. E. (1926). Three score years and nine. C. Edmund Kells.
Lua i Stíl Chicago (17ú heag.)Kells, C. Edmund. Three Score Years and Nine. New Orleans: C. Edmund Kells, 1926.
Lua MLA (8ú heag.)Kells, C. Edmund. Three Score Years and Nine. C. Edmund Kells, 1926.
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