Posner, M. J. (1982). Executive essentials. New York: Avon Books.
Trích dẫn kiểu ChicagoPosner, Mitchell J. Executive Essentials. New York: Avon Books, 1982.
MLA引文Posner, Mitchell J. Executive Essentials. New York: Avon Books, 1982.
警告：這些引文格式不一定是100％准確.