Brown, D. (1987). Principles of Language Learning and Teaching. Prentice - Hall.
Chicago-čujuhus (17. p.)Brown, Douglas. Principles of Language Learning and Teaching. New Jersey, Estados Unidos: Prentice - Hall, 1987.
MLA-čujuhus (9. p.)Brown, Douglas. Principles of Language Learning and Teaching. Prentice - Hall, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.