Mandell, S. L. (1985). Computers and data processing: Concepts and application (3rd ed.). West.
Lua i Stíl Chicago (17ú heag.)Mandell, Steven L. Computers and Data Processing: Concepts and Application. 3rd ed. New York: West, 1985.
Lua MLA (9ú heag.)Mandell, Steven L. Computers and Data Processing: Concepts and Application. 3rd ed. West, 1985.
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