APA引文

 Littlejohn, A. (2005).  Company to company: A task-based approach to business emails, letters and faxes.  Cambridge University Press.

Trích dẫn kiểu Chicago

 Littlejohn, Andrew.  Company to Company: A Task-based Approach to Business Emails, Letters and Faxes.  Cambridge University Press, 2005.

MLA引文

 Littlejohn, Andrew.  Company to Company: A Task-based Approach to Business Emails, Letters and Faxes.  Cambridge University Press, 2005.

警告：这些引文格式不一定是100％准确.