Παραπομπή σε μορφή APA (7η εκδ.)

Nikolaou, C., & Stephanidis, C. (1998). Research and Advanced Technology for Digital Libraries: 2nd European Conference, ECDL'98 Heraklion, Crete,Greece September 21-23, 1998 Proceedings. Springer-Verlag.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nikolaou, Christos, και Constantine Stephanidis. Research and Advanced Technology for Digital Libraries: 2nd European Conference, ECDL'98 Heraklion, Crete,Greece September 21-23, 1998 Proceedings. Berlin: Springer-Verlag, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

Nikolaou, Christos, και Constantine Stephanidis. Research and Advanced Technology for Digital Libraries: 2nd European Conference, ECDL'98 Heraklion, Crete,Greece September 21-23, 1998 Proceedings. Springer-Verlag, 1998.