Παραπομπή σε μορφή APA (7η εκδ.)

Langer, A. M. (2002). Applied Ecommerce: Analysis and engineering for Ecommerce systems. Wiley Computer Pub.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Langer, Arthur M. Applied Ecommerce: Analysis and Engineering for Ecommerce Systems. New York: Wiley Computer Pub, 2002.

Παραπομπή σε μορφή MLA (9th εκδ.)

Langer, Arthur M. Applied Ecommerce: Analysis and Engineering for Ecommerce Systems. Wiley Computer Pub, 2002.