SpringerLink (Online service), Embley, D. W., & Goldstein, R. C. (1997). Conceptual Modeling - ER '97: 16th International Conference on Conceptual Modeling, Los Angeles, CA, USA, November 3-5, 1997. Proceedings (1st ed. 1997.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-63699-4
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), David W. Embley, και Robert C. Goldstein. Conceptual Modeling - ER '97: 16th International Conference on Conceptual Modeling, Los Angeles, CA, USA, November 3-5, 1997. Proceedings. 1st ed. 1997. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1997. https://doi.org/10.1007/3-540-63699-4.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Conceptual Modeling - ER '97: 16th International Conference on Conceptual Modeling, Los Angeles, CA, USA, November 3-5, 1997. Proceedings. 1st ed. 1997. Springer Berlin Heidelberg : Imprint: Springer, 1997. https://doi.org/10.1007/3-540-63699-4.
