Gibaldi, J. (1999). MLA handbook for writers of research papers (5th ed.). Modern Language Association of America.
Lua i Stíl Chicago (17ú heag.)Gibaldi, Joseph. MLA Handbook for Writers of Research Papers. 5th ed. New York: Modern Language Association of America, 1999.
Lua MLA (9ú heag.)Gibaldi, Joseph. MLA Handbook for Writers of Research Papers. 5th ed. Modern Language Association of America, 1999.
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