(1981). Terminal Area Forecasts, Fiscal Years 1981-1992.
Chicago-čujuhus (17. p.)Terminal Area Forecasts, Fiscal Years 1981-1992. 1981.
MLA-čujuhus (9. p.)Terminal Area Forecasts, Fiscal Years 1981-1992. 1981.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.