Παραπομπή σε μορφή APA (7η εκδ.)

Tuominen, K. (2012). Starting up your professional service enterprise: Self-assessment work book : 31 probing questions and contrasting pairs of examples : what separates the successful from the average? Sai Global.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Tuominen, Kari. Starting Up Your Professional Service Enterprise: Self-assessment Work Book : 31 Probing Questions and Contrasting Pairs of Examples : What Separates the Successful from the Average? Australia: Sai Global, 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

Tuominen, Kari. Starting Up Your Professional Service Enterprise: Self-assessment Work Book : 31 Probing Questions and Contrasting Pairs of Examples : What Separates the Successful from the Average? Sai Global, 2012.