Barber, W. J. (1967). A History of economic thought. Penguin books.
Chicago-čujuhus (17. p.)Barber, William J. A History of Economic Thought. England: Penguin books, 1967.
MLA-čujuhus (9. p.)Barber, William J. A History of Economic Thought. Penguin books, 1967.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.