SpringerLink (Online service), Isaías, P., Spector, J. M., Ifenthaler, D., & Sampson, D. G. (2015). E-Learning Systems, Environments and Approaches: Theory and Implementation. Springer International Publishing : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Pedro Isaías, J. Michael Spector, Dirk Ifenthaler, και Demetrios G. Sampson. E-Learning Systems, Environments and Approaches: Theory and Implementation. Cham: Springer International Publishing : Imprint: Springer, 2015.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. E-Learning Systems, Environments and Approaches: Theory and Implementation. Springer International Publishing : Imprint: Springer, 2015.
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