Cita APA (7th ed.)

Williams, C. (2008). Effictive management. 3e (third.). THOMSON.

Cita Chicago (17th ed.)

Williams, Chuck. Effictive Management. 3e. third. Australia: THOMSON, 2008.

Cita MLA (9th ed.)

Williams, Chuck. Effictive Management. 3e. third. THOMSON, 2008.