Gower, R. (2004). Grammar in practice 3 (First edition.). Cambridge University Press.
Chicago-čujuhus (17. p.)Gower, Roger. Grammar in Practice 3. First edition. Cambridge: Cambridge University Press, 2004.
MLA-čujuhus (9. p.)Gower, Roger. Grammar in Practice 3. First edition. Cambridge University Press, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.