International Business Machines Corporation. International Technical Support Organization & Lovelace, D. (2003). VSAM demystified (2nd ed.). IBM, International Technical Support Organization.
Cita Chicago Style (17a ed.)International Business Machines Corporation. International Technical Support Organization y Dave Lovelace. VSAM Demystified. 2nd ed. San Jose, CA: IBM, International Technical Support Organization, 2003.
Cita MLA (9a ed.)International Business Machines Corporation. International Technical Support Organization y Dave Lovelace. VSAM Demystified. 2nd ed. IBM, International Technical Support Organization, 2003.
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