Schlesinger, A. M., & De Grazia, A. (1967). Congress and the presidency: Their role in modern times. American Enterprise Institute for Public Policy Research.
Citazione stile Chigago Style (17a edizione)Schlesinger, Arthur M., e Alfred De Grazia. Congress and the Presidency: Their Role in Modern Times. Washington: American Enterprise Institute for Public Policy Research, 1967.
Citatione MLA (8a ed.)Schlesinger, Arthur M., e Alfred De Grazia. Congress and the Presidency: Their Role in Modern Times. American Enterprise Institute for Public Policy Research, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.