Heilbroner, R. (1993). 21st century capitalism. New York: Norton.
Trích dẫn kiểu ChicagoHeilbroner, Robert. 21st Century Capitalism. New York: Norton, 1993.
MLA引文Heilbroner, Robert. 21st Century Capitalism. New York: Norton, 1993.
警告：這些引文格式不一定是100％准確.