Hughes, J. G. (1988). Database technology: A software engineering approach. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Hughes, John G. Database Technology: A Software Engineering Approach. New York: Prentice-Hall, 1988.
Lua MLA (9ú heag.)Hughes, John G. Database Technology: A Software Engineering Approach. Prentice-Hall, 1988.
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