(1993). Operational Strategy of the Global Environment Facility.
Chicago-čujuhus (17. p.)Operational Strategy of the Global Environment Facility. 1993.
MLA-čujuhus (9. p.)Operational Strategy of the Global Environment Facility. 1993.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.