APA-čujuhus (7. p.)
Berkman, R. I. Find it fast: How to uncover expert information on any subject (4a edición.). Harper.
Chicago-čujuhus (17. p.)
Berkman, Robert I. Find It Fast: How to Uncover Expert Information on Any Subject. 4a edición. Nueva York, EUA: Harper.
MLA-čujuhus (9. p.)
Berkman, Robert I. Find It Fast: How to Uncover Expert Information on Any Subject. 4a edición. Harper.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.