Gibaldi, J. (2003). MLA handbook for writers of research papers (6th edition.). Modern Language Association of America.
Lua i Stíl Chicago (17ú heag.)Gibaldi, Joseph. MLA Handbook for Writers of Research Papers. 6th edition. New York: Modern Language Association of America, 2003.
Lua MLA (9ú heag.)Gibaldi, Joseph. MLA Handbook for Writers of Research Papers. 6th edition. Modern Language Association of America, 2003.
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