Turk, C., & Kirkman, J. (1989). Effective writing: Improving scientific technical and business communication (2nd ed.). E & F N Spon.
Cita Chicago (17th ed.)Turk, Christopher, i John Kirkman. Effective Writing: Improving Scientific Technical and Business Communication. 2nd ed. London: E & F N Spon, 1989.
Cita MLA (9th ed.)Turk, Christopher, i John Kirkman. Effective Writing: Improving Scientific Technical and Business Communication. 2nd ed. E & F N Spon, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.