Sebranek, P. (1999). Write source 2000: A guide to writing, thinking and learning. Write Source Educational Publishing House.
Lua i Stíl Chicago (17ú heag.)Sebranek, Patrick. Write Source 2000: A Guide to Writing, Thinking and Learning. Wilmington, Mass: Write Source Educational Publishing House, 1999.
Lua MLA (9ú heag.)Sebranek, Patrick. Write Source 2000: A Guide to Writing, Thinking and Learning. Write Source Educational Publishing House, 1999.
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