ebrary, Inc, Nevalainen, T., & Tanskanen, S. (2007). Letter writing. J. Benjamins Pub. Co..
Lua i Stíl Chicago (17ú heag.)ebrary, Inc, Terttu Nevalainen, agus Sanna-Kaisa Tanskanen. Letter Writing. Amsterdam ; Philadelphia: J. Benjamins Pub. Co., 2007.
Lua MLA (9ú heag.)ebrary, Inc, et al. Letter Writing. J. Benjamins Pub. Co., 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.