Tohutoro APA (7th ed.)

ebrary, Inc, Nevalainen, T., & Tanskanen, S. (2007). Letter writing. J. Benjamins Pub. Co..

Tohutoru Kātū Chicago (17th ed.)

ebrary, Inc, Terttu Nevalainen, me Sanna-Kaisa Tanskanen. Letter Writing. Amsterdam ; Philadelphia: J. Benjamins Pub. Co., 2007.

Tohutoro MLA (9th ed.)

ebrary, Inc, et al. Letter Writing. J. Benjamins Pub. Co., 2007.