APA-ийн эшлэл(7 дахь хэвлэлт)

Turk, C., & Kirkman, J. (1989). Effective writing: Improving scientific technical and business communication (2nd ed.). E & F N Spon.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Turk, Christopher, ба John Kirkman. Effective Writing: Improving Scientific Technical and Business Communication. 2nd ed. London: E & F N Spon, 1989.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Turk, Christopher, ба John Kirkman. Effective Writing: Improving Scientific Technical and Business Communication. 2nd ed. E & F N Spon, 1989.