APA (7th ed.) Citation

Hale, R., & Whitlam, P. (1999). Impact and influence: Tools and techniques for crating a lasting impression. Kogan Page.

Chicago Style (17th ed.) Citation

Hale, Richard, and Peter Whitlam. Impact and Influence: Tools and Techniques for Crating a Lasting Impression. London: Kogan Page, 1999.

MLA (9th ed.) Citation

Hale, Richard, and Peter Whitlam. Impact and Influence: Tools and Techniques for Crating a Lasting Impression. Kogan Page, 1999.