International Journal of Epidemiology. International Epidemiological Association.
Chicago-čujuhus (17. p.)International Journal of Epidemiology. International Epidemiological Association.
MLA-čujuhus (9. p.)International Journal of Epidemiology. International Epidemiological Association.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.