Chapman, L. (1974). English grammar and exercises: Book three. Longman.
Chicago-čujuhus (17. p.)Chapman, L.R.H. English Grammar and Exercises: Book Three. London: Longman, 1974.
MLA-čujuhus (9. p.)Chapman, L.R.H. English Grammar and Exercises: Book Three. Longman, 1974.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.