Ng, W. An extension of the relational data model to incorporate ordered domains. ACM transactions on database systems..
Lua i Stíl Chicago (17ú heag.)Ng, Wilfred. "An Extension of the Relational Data Model to Incorporate Ordered Domains." ACM Transactions on Database Systems. .
Lua MLA (9ú heag.)Ng, Wilfred. "An Extension of the Relational Data Model to Incorporate Ordered Domains." ACM Transactions on Database Systems., .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.