Fiedler, E., Jansen, R., & Norman-Risch, M. (1990). America in close-up. Longman.
Chicago-čujuhus (17. p.)Fiedler, Eckhard, Reimer Jansen, juo Mil Norman-Risch. America in Close-up. Essex: Longman, 1990.
MLA-čujuhus (9. p.)Fiedler, Eckhard, et al. America in Close-up. Longman, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.