APA (7th ed.) Citation

Gorski, D., Ingram, J., & Maltby, J. (1991). Sales and marketing software handbook (1. publ.). Pitman.

Chicago Style (17th ed.) Citation

Gorski, Debbie, Jonathan Ingram, and John Maltby. Sales and Marketing Software Handbook. 1. publ. London: Pitman, 1991.

MLA (9th ed.) Citation

Gorski, Debbie, et al. Sales and Marketing Software Handbook. 1. publ. Pitman, 1991.