APA引文

Drucker,Peter F. (1985). Innovation and entrepreneurship: Practice and principles. Heinemann.

Chicago Edition Citation

Drucker,Peter F. Innovation and Entrepreneurship: Practice and Principles. London: Heinemann, 1985.

MLA引文

Drucker,Peter F. Innovation and Entrepreneurship: Practice and Principles. Heinemann, 1985.

警告：這些引文格式不一定是100％准確.