Campbell, D. F., & Campbell, D. F. (2019). Global Quality of Democracy as Innovation Enabler: Measuring Democracy for Success (1st ed. 2019.). Springer International Publishing : Imprint: Palgrave Macmillan. https://doi.org/10.1007/978-3-319-72529-1
Παραπομπή σε μορφή Chicago (17η εκδ.)Campbell, David F.J, και David F.J Campbell. Global Quality of Democracy as Innovation Enabler: Measuring Democracy for Success. 1st ed. 2019. Cham: Springer International Publishing : Imprint: Palgrave Macmillan, 2019. https://doi.org/10.1007/978-3-319-72529-1.
Παραπομπή σε μορφή MLA (8th εκδ.)Campbell, David F.J, και David F.J Campbell. Global Quality of Democracy as Innovation Enabler: Measuring Democracy for Success. 1st ed. 2019. Springer International Publishing : Imprint: Palgrave Macmillan, 2019. https://doi.org/10.1007/978-3-319-72529-1.
