PARKER, C. R. (1989). Management Informations Systems Strategy And Action Charles S. Parker. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)PARKER, Charles R. Management Informations Systems Strategy And Action Charles S. Parker. McGraw-Hill, 1989.
Lua MLA (8ú heag.)PARKER, Charles R. Management Informations Systems Strategy And Action Charles S. Parker. McGraw-Hill, 1989.
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