Past, R. (1975). Language as a lively art. W.M.C. Brown.
Lua i Stíl Chicago (17ú heag.)Past, Ray. Language as a Lively Art. Iowa, Estados Unidos: W.M.C. Brown, 1975.
Lua MLA (9ú heag.)Past, Ray. Language as a Lively Art. W.M.C. Brown, 1975.
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