Thomson, A. (1961). A Practical English Grammar Exercises-1 Vol I. O.U.P.
Chicago-čujuhus (17. p.)Thomson, A. A Practical English Grammar Exercises-1 Vol I. London: O.U.P, 1961.
MLA-čujuhus (9. p.)Thomson, A. A Practical English Grammar Exercises-1 Vol I. O.U.P, 1961.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.