Eastland, T. (1992). Energy in the executive: The case for the strong presidency. Free Press.
Lua i Stíl Chicago (17ú heag.)Eastland, Terry. Energy in the Executive: The Case for the Strong Presidency. New York: Free Press, 1992.
Lua MLA (9ú heag.)Eastland, Terry. Energy in the Executive: The Case for the Strong Presidency. Free Press, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.