Gray, A. (1961). The development of economic doctrine. John Wiley & Sons.
Chicago-čujuhus (17. p.)Gray, Alexander. The Development of Economic Doctrine. New York: John Wiley & Sons, 1961.
MLA-čujuhus (9. p.)Gray, Alexander. The Development of Economic Doctrine. John Wiley & Sons, 1961.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.