Robinson, J. (1965). Economics of imperfect competition. Macmillan.
Chicago-čujuhus (17. p.)Robinson, Joan. Economics of Imperfect Competition. London: Macmillan, 1965.
MLA-čujuhus (9. p.)Robinson, Joan. Economics of Imperfect Competition. Macmillan, 1965.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.