Bell, A. H. (1996). NTC's business writer's handbook: Business communication from A to Z. NTC Publishing Group.
Cita Chicago (17th ed.)Bell, Arthur H. NTC's Business Writer's Handbook: Business Communication from A to Z. Lincolnwood, Ill: NTC Publishing Group, 1996.
Cita MLA (9th ed.)Bell, Arthur H. NTC's Business Writer's Handbook: Business Communication from A to Z. NTC Publishing Group, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.