Cita APA (7a ed.)

Flannes, S., & Levin, G. (2005). Essential people skills for project managers (1st edition.). Management Concepts.

Cita Chicago Style (17a ed.)

Flannes, Steven, y Ginger Levin. Essential People Skills for Project Managers. 1st edition. Vienna, Virginia: Management Concepts, 2005.

Cita MLA (9a ed.)

Flannes, Steven, y Ginger Levin. Essential People Skills for Project Managers. 1st edition. Management Concepts, 2005.