Gaya APA

How to Write Effective Business English : The Essential Toolkit for Composing Powerful Letters, E-mails and More, for Today's Business Needs. (2009). : Kogan Page.

Gaya MLA

How to Write Effective Business English : The Essential Toolkit for Composing Powerful Letters, E-mails and More, for Today's Business Needs. . : Kogan Page, 2009. Text.