Tom, P. L. (1989). Computer information systems: A managerial approach with basic. Scott, Foresman.
Lua i Stíl Chicago (17ú heag.)Tom, Paul L. Computer Information Systems: A Managerial Approach with Basic. Glenview, Ill.: Scott, Foresman, 1989.
Lua MLA (9ú heag.)Tom, Paul L. Computer Information Systems: A Managerial Approach with Basic. Scott, Foresman, 1989.
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