Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Sampson, D. G., Ifenthaler, D., Spector, J. M., & Isaias, P. (2014). Digital Systems for Open Access to Formal and Informal Learning. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), Demetrios G. Sampson, Dirk Ifenthaler, J. Michael Spector, και Pedro Isaias. Digital Systems for Open Access to Formal and Informal Learning. Cham: Springer International Publishing : Imprint: Springer, 2014.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Digital Systems for Open Access to Formal and Informal Learning. Springer International Publishing : Imprint: Springer, 2014.