Swan, M. Practical english usage (Third edition.). New York.
Chicago-čujuhus (17. p.)Swan, Michael. Practical English Usage. Third edition. Oxford: New York.
MLA-čujuhus (9. p.)Swan, Michael. Practical English Usage. Third edition. New York.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.