Kerrigan, J. Shakespeare's poems: John Kerrigan. The Cambridge companion to Shakespeare.(2003).
Lua i Stíl Chicago (17ú heag.)Kerrigan, John. "Shakespeare's Poems: John Kerrigan." The Cambridge Companion to Shakespeare.(2003) .
Lua MLA (8ú heag.)Kerrigan, John. "Shakespeare's Poems: John Kerrigan." The Cambridge Companion to Shakespeare.(2003), .
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