APA引文

(1990). System administration for microsoft SQL server 7.0. []S.l.: [s.n.].

Trích dẫn kiểu Chicago

System Administration for Microsoft SQL Server 7.0. []S.l.: [s.n.], 1990.

MLA引文

System Administration for Microsoft SQL Server 7.0. []S.l.: [s.n.], 1990.

警告：這些引文格式不一定是100％准確.