APA (7th ed.) Zitazioa

Timm, P. R. Exceed customer expectations. Jack Wilson and Associates.

Chicago Style (17th ed.) Zitazioa

Timm, Paul R. Exceed Customer Expectations. Illonois, Chicago: Jack Wilson and Associates.

MLA (9th ed.) Zitazioa

Timm, Paul R. Exceed Customer Expectations. Jack Wilson and Associates.