Barber, W. J. (1967). A history of economic thought. New York: Penguin Books.
Chicago Style citaatBarber, William J. A History of Economic Thought. New York: Penguin Books, 1967.
MLA citatieBarber, William J. A History of Economic Thought. New York: Penguin Books, 1967.
Let op: Deze citaties zijn niet altijd 100% accuraat.