APA
Center for the Study of Presidency, . (1986). Presidential studies quarterly. New York: Center for the Study of Presidency.
Chicago
Center for the Study of Presidency, . 1986. Presidential studies quarterly. New York: Center for the Study of Presidency.
Harvard
Center for the Study of Presidency, . (1986). Presidential studies quarterly. New York: Center for the Study of Presidency.
MLA
Center for the Study of Presidency, . Presidential studies quarterly. New York: Center for the Study of Presidency. 1986.