Beisse, F. (2013). A guide to computer user support for help desk & support specialists (5th ed., International ed.). Course Technology, Cengage Learning.
Citace podle Chicago (17th ed.)Beisse, Fred. A Guide to Computer User Support for Help Desk & Support Specialists. 5th ed., International ed. Australia: Course Technology, Cengage Learning, 2013.
Citace podle MLA (9th ed.)Beisse, Fred. A Guide to Computer User Support for Help Desk & Support Specialists. 5th ed., International ed. Course Technology, Cengage Learning, 2013.
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