Eastland, T. (1992). Energy in the executive: The case for the strong presidency. Free Press.
芝加哥风格引文Eastland, Terry. Energy in the Executive: The Case for the Strong Presidency. New York: Free Press, 1992.
MLA引文Eastland, Terry. Energy in the Executive: The Case for the Strong Presidency. Free Press, 1992.
警告：这些引文格式不一定是100％准确.