APA (7th ed.) Zitazioa
Cohen, J. E. (2012). The president's legislative policy agenda, 1789-2002. Cambridge University Press.
Chicago Style (17th ed.) Zitazioa
Cohen, Jeffrey E. The President's Legislative Policy Agenda, 1789-2002. Cambridge ; New York: Cambridge University Press, 2012.
MLA (9th ed.) Zitazioa
Cohen, Jeffrey E. The President's Legislative Policy Agenda, 1789-2002. Cambridge University Press, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.