Richards, J. C. (1984). Error analysis: Perspectives on second language acquisition. Longman.
Chicago-čujuhus (17. p.)Richards, Jack C. Error Analysis: Perspectives on Second Language Acquisition. London: Longman, 1984.
MLA-čujuhus (9. p.)Richards, Jack C. Error Analysis: Perspectives on Second Language Acquisition. Longman, 1984.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.