Boller, P. F., & Paul F. Boller; Jr. (2004). Presidential campaigns: From George Washington to George W. Bush. New York: Oxford University Press.
Chicago Style aipamenaBoller, Paul F., và Paul F. Boller; Jr. Presidential Campaigns: From George Washington to George W. Bush. New York: Oxford University Press, 2004.
MLA aipamenaBoller, Paul F., và Paul F. Boller; Jr. Presidential Campaigns: From George Washington to George W. Bush. New York: Oxford University Press, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.