APA (7th ed.) Citation

Gray, D. A. (1989). Start and run a profitable consulting business. Kogan Page.

Chicago Style (17th ed.) Citation

Gray, Douglas A. Start and Run a Profitable Consulting Business. London: Kogan Page, 1989.

MLA (9th ed.) Citation

Gray, Douglas A. Start and Run a Profitable Consulting Business. Kogan Page, 1989.