Littlejohn, A. (2015). Company to Company: A task-based approach to business emails, letters and faxes : Student's book (4th ed.). Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoLittlejohn, Andrew. Company to Company: A Task-based Approach to Business Emails, Letters and Faxes : Student's Book. 4th ed. Cambridge: Cambridge University Press, 2015.
MLA引文Littlejohn, Andrew. Company to Company: A Task-based Approach to Business Emails, Letters and Faxes : Student's Book. 4th ed. Cambridge: Cambridge University Press, 2015.
警告：這些引文格式不一定是100％准確.