Cita APA

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

Chicago Style Citation

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

Cita MLA

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