Fisher,Louis. (1972). President and congress: Powers and policy. Free press.
Stile di citazione ChicagoFisher,Louis. President and Congress: Powers and Policy. New York: Free press, 1972.
Citazione MLAFisher,Louis. President and Congress: Powers and Policy. Free press, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.