Hall, R. F. Milton's sonnets and his contemporaries: R. F. Hall. The Cambridge companion to Milton.(2004).
Lua i Stíl Chicago (17ú heag.)Hall, R. F. "Milton's Sonnets and His Contemporaries: R. F. Hall." The Cambridge Companion to Milton.(2004) .
Lua MLA (8ú heag.)Hall, R. F. "Milton's Sonnets and His Contemporaries: R. F. Hall." The Cambridge Companion to Milton.(2004), .
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