Παραπομπή σε μορφή APA (7η εκδ.)

Forsyth Patrick. (2003). Marketing and selling professional services: Practical approaches to practice development (3nd ed.). Kogan Page.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Forsyth Patrick. Marketing and Selling Professional Services: Practical Approaches to Practice Development. 3nd ed. London: Kogan Page, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

Forsyth Patrick. Marketing and Selling Professional Services: Practical Approaches to Practice Development. 3nd ed. Kogan Page, 2003.