APA-referens

Walker, S. (2012). Presidents and civil liberties from Wilson to Obama: A story of poor custodians. Cambridge University Press.

Chicago-stil citat

Walker, Samuel. Presidents and Civil Liberties from Wilson to Obama: A Story of Poor Custodians. Cambridge: Cambridge University Press, 2012.

MLA-referens

Walker, Samuel. Presidents and Civil Liberties from Wilson to Obama: A Story of Poor Custodians. Cambridge University Press, 2012.