Cita APA (7th ed.)
Turk, C., & Kirkman, J. (1989). Effective writing: Improving scientific, technical and business communication (2nd ed.). Chapman & Hall.
Cita Chicago (17th ed.)
Turk, Christopher, i John Kirkman. Effective Writing: Improving Scientific, Technical and Business Communication. 2nd ed. New York: Chapman & Hall, 1989.
Cita MLA (9th ed.)
Turk, Christopher, i John Kirkman. Effective Writing: Improving Scientific, Technical and Business Communication. 2nd ed. Chapman & Hall, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.