Kingston, W. (1968). Invention and monopoly. Woolwich Polytechnic, Dept. of Economics and Business Studies.
芝加哥风格引文Kingston, William. Invention and Monopoly. London: Woolwich Polytechnic, Dept. of Economics and Business Studies, 1968.
MLA引文Kingston, William. Invention and Monopoly. Woolwich Polytechnic, Dept. of Economics and Business Studies, 1968.
警告：这些引文格式不一定是100％准确.