SpringerLink (Online service), Brüntje, D., & Gajda, O. (2016). Crowdfunding in Europe: State of the Art in Theory and Practice (1st ed. 2016.). Springer International Publishing : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Dennis Brüntje, και Oliver Gajda. Crowdfunding in Europe: State of the Art in Theory and Practice. 1st ed. 2016. Cham: Springer International Publishing : Imprint: Springer, 2016.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Crowdfunding in Europe: State of the Art in Theory and Practice. 1st ed. 2016. Springer International Publishing : Imprint: Springer, 2016.
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