Shaw, K. (1990). Collins Cobuild English grammar exercises. Collins.
Chicago-čujuhus (17. p.)Shaw, Katy. Collins Cobuild English Grammar Exercises. London: Collins, 1990.
MLA-čujuhus (9. p.)Shaw, Katy. Collins Cobuild English Grammar Exercises. Collins, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.