Cita APA (7th ed.)
Taylor Shirley & Gartside L. (2004). Model business letters, emails and other business documents (6th ed.). Prentice Hall.
Cita Chicago (17th ed.)
Taylor Shirley i Gartside L. Model Business Letters, Emails and Other Business Documents. 6th ed. London: Prentice Hall, 2004.
Cita MLA (9th ed.)
Taylor Shirley i Gartside L. Model Business Letters, Emails and Other Business Documents. 6th ed. Prentice Hall, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.