(1977). Studies in second language acquisition. Indiana University Linguistics Club.
Chicago-čujuhus (17. p.)Studies in Second Language Acquisition. Bloomington, IN: Indiana University Linguistics Club, 1977.
MLA-čujuhus (9. p.)Studies in Second Language Acquisition. Indiana University Linguistics Club, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.