(1980). Language problems & language planning. University of Texas Press in cooperation with the Center for Research and Documentation on World Language Problems.
Chicago-čujuhus (17. p.)Language Problems & Language Planning. Austin, Texas: University of Texas Press in cooperation with the Center for Research and Documentation on World Language Problems, 1980.
MLA-čujuhus (9. p.)Language Problems & Language Planning. University of Texas Press in cooperation with the Center for Research and Documentation on World Language Problems, 1980.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.