Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Crew, M. A., & Brennan, T. J. (2015). Postal and Delivery Innovation in the Digital Economy. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), Michael A. Crew, και Timothy J. Brennan. Postal and Delivery Innovation in the Digital Economy. Cham: Springer International Publishing : Imprint: Springer, 2015.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Postal and Delivery Innovation in the Digital Economy. Springer International Publishing : Imprint: Springer, 2015.