Drucker, P. (1985). Innovation and entrepreneurship. Heinemann.
芝加哥风格引文Drucker, Peter. Innovation and Entrepreneurship. London: Heinemann, 1985.
MLA引文Drucker, Peter. Innovation and Entrepreneurship. Heinemann, 1985.
警告：这些引文格式不一定是100％准确.
APA引文