Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Koulaouzides, G. A., & Popović, K. (2017). Adult Education and Lifelong Learning in Southeastern Europe. SensePublishers : Imprint: SensePublishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), George A. Koulaouzides, και Katarina Popović. Adult Education and Lifelong Learning in Southeastern Europe. Rotterdam: SensePublishers : Imprint: SensePublishers, 2017.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Adult Education and Lifelong Learning in Southeastern Europe. SensePublishers : Imprint: SensePublishers, 2017.