Lydall, H. (1992). The entrepreneurial factor in economic growth. Palgrave Macmillan.
芝加哥风格引文Lydall, Harold. The Entrepreneurial Factor in Economic Growth. Basingstoke: Palgrave Macmillan, 1992.
MLA引文Lydall, Harold. The Entrepreneurial Factor in Economic Growth. Palgrave Macmillan, 1992.
警告：这些引文格式不一定是100％准确.