Παραπομπή APA

Couchman, J. J. (1999). Oracle certified professional DBA certification exam guide. Tata McGraw hill.

Παραπομπή Chicago Style

Couchman, Jason J. Oracle Certified Professional DBA Certification Exam Guide. New Delhi: Tata McGraw hill, 1999.

Παραπομπή MLA

Couchman, Jason J. Oracle Certified Professional DBA Certification Exam Guide. Tata McGraw hill, 1999.