Parsons, J. J. (1998). Computer concepts (3rd.ed.). ITP.
Lua i Stíl Chicago (17ú heag.)Parsons, June Jamrich. Computer Concepts. 3rd.ed. Cambridge: ITP, 1998.
Lua MLA (9ú heag.)Parsons, June Jamrich. Computer Concepts. 3rd.ed. ITP, 1998.
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