Murphy, R. (1994). Essential grammar in use (1a. ed.). Cambridge university press.
Chicago-čujuhus (17. p.)Murphy, Raymond. Essential Grammar in Use. 1a. ed. Madrid: Cambridge university press, 1994.
MLA-čujuhus (9. p.)Murphy, Raymond. Essential Grammar in Use. 1a. ed. Cambridge university press, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.