Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Zarifis, G. K., & Gravani, M. N. (2014). Challenging the 'European Area of Lifelong Learning': A Critical Response. Springer Netherlands : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), George K. Zarifis, και Maria N. Gravani. Challenging the 'European Area of Lifelong Learning': A Critical Response. Dordrecht: Springer Netherlands : Imprint: Springer, 2014.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Challenging the 'European Area of Lifelong Learning': A Critical Response. Springer Netherlands : Imprint: Springer, 2014.