Christopher Turk. (1989). Effective writing: Improving scientific, technical and business communication. London: E and FN Spon.
استشهاد بنمط شيكاغوChristopher Turk. Effective Writing: Improving Scientific, Technical and Business Communication. London: E and FN Spon, 1989.
MLA استشهادChristopher Turk. Effective Writing: Improving Scientific, Technical and Business Communication. London: E and FN Spon, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.