Lua APA (7ú heag.)
Bly, R. W., & Kelly, R. A. (2009). The encyclopedia of business letters, faxes, and e-mail. Career Press.
Lua i Stíl Chicago (17ú heag.)
Bly, Robert W., agus Regina Anne Kelly. The Encyclopedia of Business Letters, Faxes, and E-mail. Franklin Lakes, NJ: Career Press, 2009.
Lua MLA (9ú heag.)
Bly, Robert W., agus Regina Anne Kelly. The Encyclopedia of Business Letters, Faxes, and E-mail. Career Press, 2009.
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