Ober, S. (2008). Contemporary business communication (Fifth edition.). Houghton Mifflin Co..
Chicago-viite (17. p.)Ober, Scot. Contemporary Business Communication. Fifth edition. Boston, MA: Houghton Mifflin Co., 2008.
MLA-viite (8. p.)Ober, Scot. Contemporary Business Communication. Fifth edition. Houghton Mifflin Co., 2008.
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