Callahan, E. (1997). Microsoft Access 97: Visual basic paso a paso. McGraw Hill.
Chicago-čujuhus (17. p.)Callahan, Evan. Microsoft Access 97: Visual Basic Paso a Paso. Madrid, España: McGraw Hill, 1997.
MLA-čujuhus (9. p.)Callahan, Evan. Microsoft Access 97: Visual Basic Paso a Paso. McGraw Hill, 1997.
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