Barla, C. (1983). Micro economic theory (2nd.). National.
Chicago-čujuhus (17. p.)Barla, C. Micro Economic Theory. 2nd. New Delhi: National, 1983.
MLA-čujuhus (9. p.)Barla, C. Micro Economic Theory. 2nd. National, 1983.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.