APA
Citrin J., Egan P. J. & Persily N. (2008). Public opinion and constitutional controversy. Oxford: Oxford University Press.
Chicago
Citrin Jack, Egan Patrick J and Persily Nathaniel. 2008. Public opinion and constitutional controversy. Oxford: Oxford University Press.
Harvard
Citrin J., Egan P. J. and Persily N. (2008). Public opinion and constitutional controversy. Oxford: Oxford University Press.
MLA
Citrin Jack, Egan Patrick J and Persily Nathaniel. Public opinion and constitutional controversy. Oxford: Oxford University Press. 2008.