Cita APA (7a ed.)

Olawoyin, R., & Hill, D. C. (2018). Safety leadership and professional development. American Society of Safety Professionals.

Cita Chicago Style (17a ed.)

Olawoyin, Richard, y Darryl C. Hill. Safety Leadership and Professional Development. Park Ridge, Illinois: American Society of Safety Professionals, 2018.

Cita MLA (8a ed.)

Olawoyin, Richard, y Darryl C. Hill. Safety Leadership and Professional Development. American Society of Safety Professionals, 2018.