Frick, E. (2017). Information technology essentials: An introduction to information technology. Eric Frick.
Chicago-čujuhus (17. p.)Frick, Eric. Information Technology Essentials: An Introduction to Information Technology. [Columbus, Ohio]: Eric Frick, 2017.
MLA-čujuhus (9. p.)Frick, Eric. Information Technology Essentials: An Introduction to Information Technology. Eric Frick, 2017.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.