Citazione Stile APA (7a Edizione)
Pfiffner, J. P. (2004). The character factor: How we judge America's presidents. Texas A & M University Press.
Citazione stile Chigago Style (17a edizione)
Pfiffner, James P. The Character Factor: How We Judge America's Presidents. College Station, Tex.: Texas A & M University Press, 2004.
Citatione MLA (9a ed.)
Pfiffner, James P. The Character Factor: How We Judge America's Presidents. Texas A & M University Press, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.