Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Crew, M., & Brennan, T. J. (2016). The Future of the Postal Sector in a Digital World. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), Michael Crew, και Timothy J. Brennan. The Future of the Postal Sector in a Digital World. Cham: Springer International Publishing : Imprint: Springer, 2016.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. The Future of the Postal Sector in a Digital World. Springer International Publishing : Imprint: Springer, 2016.