Menger, C. (1981). Principles of economics. New York: New York University Press.
Trích dẫn kiểu ChicagoMenger, Carl. Principles of Economics. New York: New York University Press, 1981.
MLA引文Menger, Carl. Principles of Economics. New York: New York University Press, 1981.
警告：這些引文格式不一定是100％准確.