APA (7th ed.) Citation

Budge, I., Klingemann, H., & Volkens, A. (2001). Mapping policy preferences. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Budge, Ian, Hans-Dieter Klingemann, and Andrea Volkens. Mapping Policy Preferences. Oxford: Oxford Univ. Press, 2001.

MLA (8th ed.) Citation

Budge, Ian, et al. Mapping Policy Preferences. Oxford Univ. Press, 2001.