(1990). IPCS: Environmental health criteria 105. WHO.
Chicago-čujuhus (17. p.)IPCS: Environmental Health Criteria 105. Geneva: WHO, 1990.
MLA-čujuhus (9. p.)IPCS: Environmental Health Criteria 105. WHO, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.