Cullen, J. (2017). Democratic empire: The United States since 1945. John Wiley & Sons.
芝加哥风格引文Cullen, Jim. Democratic Empire: The United States Since 1945. Chichester, UK ; Malden, MA: John Wiley & Sons, 2017.
MLA引文Cullen, Jim. Democratic Empire: The United States Since 1945. John Wiley & Sons, 2017.
警告:这些引文格式不一定是100%准确.