SpringerLink (Online service), Atzeni, P., Mendelzon, A., & Mecca, G. (1999). The World Wide Web and Databases: International Workshop WebDB'98, Valencia, Spain, March 27- 28, 1998 Selected Papers (1st ed. 1999.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/10704656
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Paolo Atzeni, Alberto Mendelzon, και Giansalvatore Mecca. The World Wide Web and Databases: International Workshop WebDB'98, Valencia, Spain, March 27- 28, 1998 Selected Papers. 1st ed. 1999. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/10704656.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. The World Wide Web and Databases: International Workshop WebDB'98, Valencia, Spain, March 27- 28, 1998 Selected Papers. 1st ed. 1999. Springer Berlin Heidelberg : Imprint: Springer, 1999. https://doi.org/10.1007/10704656.
