Lewis, H. (2004). Consultants and advisers. Kogan Page.
芝加哥风格引文Lewis, Harold. Consultants and Advisers. New Delhi: Kogan Page, 2004.
MLA引文Lewis, Harold. Consultants and Advisers. Kogan Page, 2004.
警告：这些引文格式不一定是100％准确.
APA引文