Cita APA (7a ed.)

Phillips, J. J., & Phillips, P. P. (2005). ROI at work: Best-practice case studies from the real world. ASTD.

Cita Chicago Style (17a ed.)

Phillips, Jack J., y Patricia Pulliam Phillips. ROI at Work: Best-practice Case Studies from the Real World. [Place of publication not identified]: ASTD, 2005.

Cita MLA (8a ed.)

Phillips, Jack J., y Patricia Pulliam Phillips. ROI at Work: Best-practice Case Studies from the Real World. ASTD, 2005.