SpringerLink (Online service), Dervin, F., & Ragnarsdóttir, H. (2014). Origins: A Sustainable Concept in Education. SensePublishers : Imprint: SensePublishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Fred Dervin, και Hanna Ragnarsdóttir. Origins: A Sustainable Concept in Education. Rotterdam: SensePublishers : Imprint: SensePublishers, 2014.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Origins: A Sustainable Concept in Education. SensePublishers : Imprint: SensePublishers, 2014.
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