Barnett, R. W., & Blumner, J. S. (2001). The Allyn and Bacon guide to Writing Center: Theory and practice. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Barnett, Robert W., agus Jacob S. Blumner. The Allyn and Bacon Guide to Writing Center: Theory and Practice. Boston: Allyn and Bacon, 2001.
Lua MLA (9ú heag.)Barnett, Robert W., agus Jacob S. Blumner. The Allyn and Bacon Guide to Writing Center: Theory and Practice. Allyn and Bacon, 2001.
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