Thomson, A. (1962). A practical english grammar exercises-3 Vol 3. O.U.P.
Chicago-čujuhus (17. p.)Thomson, A. A Practical English Grammar Exercises-3 Vol 3. London: O.U.P, 1962.
MLA-čujuhus (9. p.)Thomson, A. A Practical English Grammar Exercises-3 Vol 3. O.U.P, 1962.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.