Codd, E. F. (1990). The relational model for database management: Version 2. Addison-Wesley.
Chicago Style (17th ed.) CitationCodd, E. F. The Relational Model for Database Management: Version 2. Reading: Addison-Wesley, 1990.
ציטוט MLACodd, E. F. The Relational Model for Database Management: Version 2. Addison-Wesley, 1990.
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