APA (7th ed.) Citation

Hornell, E., Caton, L. J., & Hjelm, P. (1994). Achieving service productivity: Lessons from the best in the world. Pitman.

Chicago Style (17th ed.) Citation

Hornell, Erik, Linsey J. Caton, and Per Hjelm. Achieving Service Productivity: Lessons from the Best in the World. London: Pitman, 1994.

MLA (9th ed.) Citation

Hornell, Erik, et al. Achieving Service Productivity: Lessons from the Best in the World. Pitman, 1994.