Swan, M., & Baker, D. (2008). Grammar scan: Diagnostic tests for practical english usage (3a. ed.). Oxford University Press.
Chicago-čujuhus (17. p.)Swan, Michael, juo David Baker. Grammar Scan: Diagnostic Tests for Practical English Usage. 3a. ed. Oxford: Oxford University Press, 2008.
MLA-čujuhus (9. p.)Swan, Michael, juo David Baker. Grammar Scan: Diagnostic Tests for Practical English Usage. 3a. ed. Oxford University Press, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.