SPRAGUE, J. (1984). The Speaker's Handbook Jo Sprague ; Douglas Stuart. Harcourt Brace Jovanovich.
Lua i Stíl Chicago (17ú heag.)SPRAGUE, Jo. The Speaker's Handbook Jo Sprague ; Douglas Stuart. Harcourt Brace Jovanovich, 1984.
Lua MLA (8ú heag.)SPRAGUE, Jo. The Speaker's Handbook Jo Sprague ; Douglas Stuart. Harcourt Brace Jovanovich, 1984.
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