APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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