Butter, P. H. (1966). Edwin Muir: Man and poet. Oliver & Boyd.
Lua i Stíl Chicago (17ú heag.)Butter, Peter H. Edwin Muir: Man and Poet. Edinburgh, London: Oliver & Boyd, 1966.
Lua MLA (8ú heag.)Butter, Peter H. Edwin Muir: Man and Poet. Oliver & Boyd, 1966.
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