APA (7th ed.) Citation

Gurnsey, J., & White, M. S. (1989). Information consultancy / John Gurnsey, Martin S. White. Bingley.

Chicago Style (17th ed.) Citation

Gurnsey, John, and Martin S. White. Information Consultancy / John Gurnsey, Martin S. White. London: Bingley, 1989.

MLA (9th ed.) Citation

Gurnsey, John, and Martin S. White. Information Consultancy / John Gurnsey, Martin S. White. Bingley, 1989.

Warning: These citations may not always be 100% accurate.