Peaty, D. (1984). Discovery for students at post-intermediate level (1a. ed.). Oxford University.
Chicago-čujuhus (17. p.)Peaty, David. Discovery for Students at Post-intermediate Level. 1a. ed. Oxford: Oxford University, 1984.
MLA-čujuhus (9. p.)Peaty, David. Discovery for Students at Post-intermediate Level. 1a. ed. Oxford University, 1984.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.