SpringerLink (Online service), Bauknecht, K., Bichler, M., & Pröll, B. (2004). E-Commerce and Web Technologies: 5th International Conference, EC-Web 2004, Zaragoza, Spain, August 31-September 3, 2004, Proceedings (1st ed. 2004.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/b100074
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Kurt Bauknecht, Martin Bichler, και Birgit Pröll. E-Commerce and Web Technologies: 5th International Conference, EC-Web 2004, Zaragoza, Spain, August 31-September 3, 2004, Proceedings. 1st ed. 2004. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2004. https://doi.org/10.1007/b100074.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. E-Commerce and Web Technologies: 5th International Conference, EC-Web 2004, Zaragoza, Spain, August 31-September 3, 2004, Proceedings. 1st ed. 2004. Springer Berlin Heidelberg : Imprint: Springer, 2004. https://doi.org/10.1007/b100074.
