BURY,Christopher, POTTER, M., & WINTER, M. (1990). Student practice book 7: Video english. Macmillan Pub.
Chicago-čujuhus (17. p.)BURY,Christopher, Mike POTTER, juo Michael WINTER. Student Practice Book 7: Video English. London: Macmillan Pub, 1990.
MLA-čujuhus (9. p.)BURY,Christopher, et al. Student Practice Book 7: Video English. Macmillan Pub, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.