Fisher, D. (1968). Commercial english: Comprehension passages. Longmans Green.
Chicago-čujuhus (17. p.)Fisher, David. Commercial English: Comprehension Passages. London: Longmans Green, 1968.
MLA-čujuhus (9. p.)Fisher, David. Commercial English: Comprehension Passages. Longmans Green, 1968.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.