Leech , G. ;. S.. (2012). Communicative Grammar Of English (3rd. ed.). Pearson Eduication.
Chicago-čujuhus (17. p.)Leech , Geaffrey ; Svartivk. Communicative Grammar Of English. 3rd. ed. New Delhi: Pearson Eduication, 2012.
MLA-čujuhus (9. p.)Leech , Geaffrey ; Svartivk. Communicative Grammar Of English. 3rd. ed. Pearson Eduication, 2012.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.