Ng, W. An extension of the relational data model to incorporate ordered domains. ACM transactions on database systems..
芝加哥风格引文Ng, Wilfred. "An Extension of the Relational Data Model to Incorporate Ordered Domains." ACM Transactions on Database Systems. .
MLA引文Ng, Wilfred. "An Extension of the Relational Data Model to Incorporate Ordered Domains." ACM Transactions on Database Systems., .
警告：这些引文格式不一定是100％准确.