Citazione Stile APA (7a Edizione)

Haerpfer, C. W., Bernhagen, P., Welzel, C., & Inglehart, R. F. (2019). Democratization (Second edition.). Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Haerpfer, Christian W., Patrick Bernhagen, Christian Welzel, e Ronald F. Inglehart. Democratization. Second edition. Oxford, UK: Oxford University Press, 2019.

Citatione MLA (9a ed.)

Haerpfer, Christian W., et al. Democratization. Second edition. Oxford University Press, 2019.