Couchman, J. S. (1998). Oracle certified professional DBA certification exam guide. Berkeley, Calif: Osbourne McGraw-Hill.
Trích dẫn kiểu ChicagoCouchman, Jason S. Oracle Certified Professional DBA Certification Exam Guide. Berkeley, Calif: Osbourne McGraw-Hill, 1998.
MLA引文Couchman, Jason S. Oracle Certified Professional DBA Certification Exam Guide. Berkeley, Calif: Osbourne McGraw-Hill, 1998.
警告:这些引文格式不一定是100%准确.