Ellis, R. (1985). Understanding second language acquisition. Oxford University.
Chicago-čujuhus (17. p.)Ellis, Rod. Understanding Second Language Acquisition. Oxford: Oxford University, 1985.
MLA-čujuhus (9. p.)Ellis, Rod. Understanding Second Language Acquisition. Oxford University, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.