SpringerLink (Online service), Parcu, P. L., Brennan, T., & Glass, V. (2018). The Contribution of the Postal and Delivery Sector: Between E-Commerce and E-Substitution (1st ed. 2018.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-70672-6
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Pier Luigi Parcu, Timothy Brennan, και Victor Glass. The Contribution of the Postal and Delivery Sector: Between E-Commerce and E-Substitution. 1st ed. 2018. Cham: Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-70672-6.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. The Contribution of the Postal and Delivery Sector: Between E-Commerce and E-Substitution. 1st ed. 2018. Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-70672-6.
