Suzanne W. Dietrich. (2001). Understanding relational database query languages. New Jersey: Prentice Hall.
शिकागो स्टाइल उद्धरणSuzanne W. Dietrich. Understanding Relational Database Query Languages. New Jersey: Prentice Hall, 2001.
एमएलए उद्धरणSuzanne W. Dietrich. Understanding Relational Database Query Languages. New Jersey: Prentice Hall, 2001.
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