Howell, R. (1976). Why work?: A challenge to the Chancellor. Conservative Political Centre.
芝加哥风格引文Howell, Ralph. Why Work?: A Challenge to the Chancellor. London: Conservative Political Centre, 1976.
MLA引文Howell, Ralph. Why Work?: A Challenge to the Chancellor. Conservative Political Centre, 1976.
警告：这些引文格式不一定是100％准确.