Alred, G. J. &. o. (2003). The business writer`s handbook (7th.). St. Martin`s Press.
Lua i Stíl Chicago (17ú heag.)Alred, Gerald J. & others. The Business Writer`s Handbook. 7th. New York: St. Martin`s Press, 2003.
Lua MLA (9ú heag.)Alred, Gerald J. & others. The Business Writer`s Handbook. 7th. St. Martin`s Press, 2003.
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