Παραπομπή σε μορφή APA (7η εκδ.)

Normann, R. (1991). Service management: Strategy and leadership in service business (2nd ed.). Wiley.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Normann, Richard. Service Management: Strategy and Leadership in Service Business. 2nd ed. Chichester : New York: Wiley, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Normann, Richard. Service Management: Strategy and Leadership in Service Business. 2nd ed. Wiley, 1991.