एपीए उद्धरण

Couchman, J. S. (1998). Oracle certified professional DBA certification exam guide. Berkeley, Calif: Osbourne McGraw-Hill.

शिकागो स्टाइल उद्धरण

Couchman, Jason S. Oracle Certified Professional DBA Certification Exam Guide. Berkeley, Calif: Osbourne McGraw-Hill, 1998.

एमएलए उद्धरण

Couchman, Jason S. Oracle Certified Professional DBA Certification Exam Guide. Berkeley, Calif: Osbourne McGraw-Hill, 1998.