BROCK SUSAN. (2004). BETTER BUSINESS WRITING: TECHNIQUES FOR IMPROVING. VIVA BOOKS PVT.LTD.
Cita Chicago (17th ed.)BROCK SUSAN. BETTER BUSINESS WRITING: TECHNIQUES FOR IMPROVING. NEW DELHI: VIVA BOOKS PVT.LTD, 2004.
Cita MLA (9th ed.)BROCK SUSAN. BETTER BUSINESS WRITING: TECHNIQUES FOR IMPROVING. VIVA BOOKS PVT.LTD, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.