Ng, W. An extension of the relational data model to incorporate ordered domains. ACM transactions on database systems..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNg, Wilfred. "An Extension of the Relational Data Model to Incorporate Ordered Domains." ACM Transactions on Database Systems. .
एमएलए (9वां संस्करण) प्रशस्ति पत्रNg, Wilfred. "An Extension of the Relational Data Model to Incorporate Ordered Domains." ACM Transactions on Database Systems., .
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