APA (7th ed.) Citation

Clegg, B., & Birch, P. (1999). Instant creativity. Kogan Page.

Chicago Style (17th ed.) Citation

Clegg, Brian, and Paul Birch. Instant Creativity. London ; Sterling, VA: Kogan Page, 1999.

MLA (9th ed.) Citation

Clegg, Brian, and Paul Birch. Instant Creativity. Kogan Page, 1999.