Ober, S. (2008). Contemporary business communication (Fifth edition.). Houghton Mifflin Co..
Citazione stile Chigago Style (17a edizione)Ober, Scot. Contemporary Business Communication. Fifth edition. Boston, MA: Houghton Mifflin Co., 2008.
Citatione MLA (8a ed.)Ober, Scot. Contemporary Business Communication. Fifth edition. Houghton Mifflin Co., 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.