International Business Machines Corporation. International Technical Support Organization & Tworek, W. (2004). Patterns: Portal search custom design. IBM, International Technical Support Organization.
Cita Chicago Style (17a ed.)International Business Machines Corporation. International Technical Support Organization y William Tworek. Patterns: Portal Search Custom Design. Armonk, NY: IBM, International Technical Support Organization, 2004.
Cita MLA (8a ed.)International Business Machines Corporation. International Technical Support Organization y William Tworek. Patterns: Portal Search Custom Design. IBM, International Technical Support Organization, 2004.
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