Julia Burchell. (2018). Cambridge English Teacher's Guide. Harper Collins.
Chicago-čujuhus (17. p.)Julia Burchell. Cambridge English Teacher's Guide. London: Harper Collins, 2018.
MLA-čujuhus (9. p.)Julia Burchell. Cambridge English Teacher's Guide. Harper Collins, 2018.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.