Ray, M. (1989). Creativity in business. New York: Doubleday.
Trích dẫn kiểu ChicagoRay, Michael. Creativity in Business. New York: Doubleday, 1989.
MLA引文Ray, Michael. Creativity in Business. New York: Doubleday, 1989.
警告：這些引文格式不一定是100％准確.
APA引文