Haig. (2001). E-mail essentials: How to make the most of e-communication. Kogan Page.
Chicago Style (17th ed.) CitationHaig. E-mail Essentials: How to Make the Most of E-communication. London: Kogan Page, 2001.
MLA引文Haig. E-mail Essentials: How to Make the Most of E-communication. Kogan Page, 2001.
警告:這些引文格式不一定是100%准確.