APA引文

Linton, I. (1997). 30 minutes - to write sales letters. Kogan Page.

芝加哥风格引文

Linton, Ian. 30 Minutes - to Write Sales Letters. New Delhi: Kogan Page, 1997.

MLA引文

Linton, Ian. 30 Minutes - to Write Sales Letters. Kogan Page, 1997.